MusicPattern.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="http://www.music-encoding.org/ns/mei" xmlns:mei="http://www.music-encoding.org/ns/mei" xmlns:xlink="http://www.w3.org/1999/xlink">
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="xlink.xsd"/>
  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2004/10/xml.xsd"/>
  <!--
    Schema generated from ODD source 2017-12-05T10:20:05Z. .
    TEI Edition: Version 3.0.0
    TEI Edition Location: http://www.tei-c.org/Vault/P5//
    
  -->
  <!---->
  <xs:simpleType name="data.ACCIDENTAL.EXPLICIT">
    <xs:restriction base="xs:token">
      <xs:enumeration value="s">
        <xs:annotation>
          <xs:documentation>Sharp.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="f">
        <xs:annotation>
          <xs:documentation>Flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ss">
        <xs:annotation>
          <xs:documentation>Double sharp (written as 2 sharps).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="x">
        <xs:annotation>
          <xs:documentation>Double sharp (written using croix).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ff">
        <xs:annotation>
          <xs:documentation>Double flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="xs">
        <xs:annotation>
          <xs:documentation>Triple sharp (written as a croix followed by a sharp).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sx">
        <xs:annotation>
          <xs:documentation>Triple sharp (written as a sharp followed by a croix).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ts">
        <xs:annotation>
          <xs:documentation>Triple sharp (written as 3 sharps).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tf">
        <xs:annotation>
          <xs:documentation>Triple flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="n">
        <xs:annotation>
          <xs:documentation>Natural.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="nf">
        <xs:annotation>
          <xs:documentation>Natural + flat; used to cancel preceding double flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ns">
        <xs:annotation>
          <xs:documentation>Natural + sharp; used to cancel preceding double sharp.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="su">
        <xs:annotation>
          <xs:documentation>Sharp note raised by quarter tone (sharp modified by arrow).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sd">
        <xs:annotation>
          <xs:documentation>Sharp note lowered by quarter tone (sharp modified by arrow).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fu">
        <xs:annotation>
          <xs:documentation>Flat note raised by quarter tone (flat modified by arrow).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fd">
        <xs:annotation>
          <xs:documentation>Flat note lowered by quarter tone (flat modified by arrow).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="nu">
        <xs:annotation>
          <xs:documentation>Natural note raised by quarter tone (natural modified by arrow).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="nd">
        <xs:annotation>
          <xs:documentation>Natural note lowered by quarter tone (natural modified by arrow).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="1qf">
        <xs:annotation>
          <xs:documentation>1/4-tone flat accidental.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="3qf">
        <xs:annotation>
          <xs:documentation>3/4-tone flat accidental.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="1qs">
        <xs:annotation>
          <xs:documentation>1/4-tone sharp accidental.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="3qs">
        <xs:annotation>
          <xs:documentation>3/4-tone sharp accidental.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.ACCIDENTAL.IMPLICIT">
    <xs:restriction base="xs:token">
      <xs:enumeration value="s">
        <xs:annotation>
          <xs:documentation>Sharp.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="f">
        <xs:annotation>
          <xs:documentation>Flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ss">
        <xs:annotation>
          <xs:documentation>Double sharp.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ff">
        <xs:annotation>
          <xs:documentation>Double flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="n">
        <xs:annotation>
          <xs:documentation>Natural.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="su">
        <xs:annotation>
          <xs:documentation>Three quarter-tones sharp.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sd">
        <xs:annotation>
          <xs:documentation>Quarter-tone sharp.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fu">
        <xs:annotation>
          <xs:documentation>Quarter-tone flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fd">
        <xs:annotation>
          <xs:documentation>Three quarter-tones flat.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.ARTICULATION">
    <xs:restriction base="xs:token">
      <xs:enumeration value="acc">
        <xs:annotation>
          <xs:documentation>Accent (Unicode 1D17B).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="stacc">
        <xs:annotation>
          <xs:documentation>Staccato (Unicode 1D17C).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ten">
        <xs:annotation>
          <xs:documentation>Tenuto (Unicode 1D17D).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="stacciss">
        <xs:annotation>
          <xs:documentation>Staccatissimo (Unicode 1D17E).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="marc">
        <xs:annotation>
          <xs:documentation>Marcato (Unicode 1D17F).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="marc-stacc">
        <xs:annotation>
          <xs:documentation>Marcato + staccato (Unicode 1D180).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="spicc">
        <xs:annotation>
          <xs:documentation>Spiccato.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="doit">
        <xs:annotation>
          <xs:documentation>Main note followed by short slide to higher, indeterminate pitch (Unicode 1D185).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="scoop">
        <xs:annotation>
          <xs:documentation>Main note preceded by short slide from lower, indeterminate pitch (Unicode 1D186).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rip">
        <xs:annotation>
          <xs:documentation>Main note preceded by long slide from lower, often indeterminate pitch; also known as "squeeze".</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="plop">
        <xs:annotation>
          <xs:documentation>Main note preceded by "slide" from higher, indeterminate pitch.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fall">
        <xs:annotation>
          <xs:documentation>Main note followed by short "slide" to lower, indeterminate pitch.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="longfall">
        <xs:annotation>
          <xs:documentation>Main note followed by long "slide" to lower, indeterminate pitch.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="bend">
        <xs:annotation>
          <xs:documentation>"lip slur" to lower pitch, then return to written pitch.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="flip">
        <xs:annotation>
          <xs:documentation>Main note followed by quick upward rise, then descent in pitch (Unicode 1D187).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smear">
        <xs:annotation>
          <xs:documentation>(Unicode 1D188).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="shake">
        <xs:annotation>
          <xs:documentation>Alternation between written pitch and next highest overtone (brass instruments) or note minor third higher (woodwinds).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dnbow">
        <xs:annotation>
          <xs:documentation>Down bow (Unicode 1D1AA).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="upbow">
        <xs:annotation>
          <xs:documentation>Up bow (Unicode 1D1AB).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="harm">
        <xs:annotation>
          <xs:documentation>Harmonic (Unicode 1D1AC).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="snap">
        <xs:annotation>
          <xs:documentation>Snap pizzicato (Unicode 1D1AD).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fingernail">
        <xs:annotation>
          <xs:documentation>Fingernail (Unicode 1D1B3).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ten-stacc">
        <xs:annotation>
          <xs:documentation>Tenuto + staccato (Unicode 1D182).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="damp">
        <xs:annotation>
          <xs:documentation>Stop harp string from sounding (Unicode 1D1B4).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dampall">
        <xs:annotation>
          <xs:documentation>Stop all harp strings from sounding (Unicode 1D1B5).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="open">
        <xs:annotation>
          <xs:documentation>Full (as opposed to stopped) tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="stop">
        <xs:annotation>
          <xs:documentation>"muffled" tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dbltongue">
        <xs:annotation>
          <xs:documentation>Double tongue (Unicode 1D18A).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="trpltongue">
        <xs:annotation>
          <xs:documentation>Triple tongue (Unicode 1D18B).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="heel">
        <xs:annotation>
          <xs:documentation>Use heel (organ pedal).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="toe">
        <xs:annotation>
          <xs:documentation>Use toe (organ pedal).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tap">
        <xs:annotation>
          <xs:documentation>Percussive effect on guitar string(s).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="lhpizz">
        <xs:annotation>
          <xs:documentation>Left-hand pizzicato.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dot">
        <xs:annotation>
          <xs:documentation>Uninterpreted dot.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="stroke">
        <xs:annotation>
          <xs:documentation>Uninterpreted stroke.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.AUGMENTDOT">
    <xs:restriction base="xs:nonNegativeInteger">
      <xs:maxInclusive value="4"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.BARPLACE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="mensur">
        <xs:annotation>
          <xs:documentation>Between staves only.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="staff">
        <xs:annotation>
          <xs:documentation>Between and across staves as necessary.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="takt">
        <xs:annotation>
          <xs:documentation>Short line above staff or through top line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.BARRENDITION">
    <xs:restriction base="xs:token">
      <xs:enumeration value="dashed">
        <xs:annotation>
          <xs:documentation>Dashed line (Unicode 1D104).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dotted">
        <xs:annotation>
          <xs:documentation>Dotted line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dbl">
        <xs:annotation>
          <xs:documentation>(Unicode 1D101).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dbldashed">
        <xs:annotation>
          <xs:documentation>Double dashed line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dbldotted">
        <xs:annotation>
          <xs:documentation>Double dotted line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="end">
        <xs:annotation>
          <xs:documentation>(Unicode 1D102).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="invis">
        <xs:annotation>
          <xs:documentation>Bar line not rendered.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rptstart">
        <xs:annotation>
          <xs:documentation>Repeat start (Unicode 1D106).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rptboth">
        <xs:annotation>
          <xs:documentation>Repeat start and end.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rptend">
        <xs:annotation>
          <xs:documentation>Repeat end (Unicode 1D107).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="single">
        <xs:annotation>
          <xs:documentation>(Unicode 1D100).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.BEAM">
    <xs:restriction base="xs:token">
      <xs:pattern value="[i|m|t][1-6]"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.BEAT">
    <xs:restriction base="xs:decimal">
      <xs:minInclusive value="0"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.BEATRPT.REND">
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:positiveInteger">
          <xs:pattern value="4|8|16|32|64|128"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="mixed"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.BEND.AMOUNT">
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:decimal">
          <xs:pattern value="\.25|\.5|\.75"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:decimal">
          <xs:pattern value="[0-9](\.25|\.5|\.75)?"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="full"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.BOOLEAN">
    <xs:restriction base="xs:token">
      <xs:enumeration value="true">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="false">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.CERTAINTY">
    <xs:restriction base="xs:token">
      <xs:enumeration value="high">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="medium">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="low">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="unknown">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.CLEFLINE">
    <xs:restriction base="xs:positiveInteger"/>
  </xs:simpleType>
  <xs:simpleType name="data.CLEFSHAPE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="G">
        <xs:annotation>
          <xs:documentation>G clef (Unicode 1D11E).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="GG">
        <xs:annotation>
          <xs:documentation>Double G clef.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="F">
        <xs:annotation>
          <xs:documentation>F clef (Unicode 1D122).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="C">
        <xs:annotation>
          <xs:documentation>C clef (Unicode 1D121).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="perc">
        <xs:annotation>
          <xs:documentation>Drum clef (Unicode 1D125 or Unicode 1D126).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="TAB">
        <xs:annotation>
          <xs:documentation>Tablature "clef"; i.e. usually "TAB" rendered vertically.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.CLUSTER">
    <xs:restriction base="xs:token">
      <xs:enumeration value="white">
        <xs:annotation>
          <xs:documentation>White keys.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="black">
        <xs:annotation>
          <xs:documentation>Black keys.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="chromatic">
        <xs:annotation>
          <xs:documentation>Mixed black and white keys.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.COLORNAMES">
    <xs:restriction base="xs:token">
      <xs:enumeration value="aqua">
        <xs:annotation>
          <xs:documentation>Hex: #00FFFF / RGB:0,255,255</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="black">
        <xs:annotation>
          <xs:documentation>Hex: #000000 / RGB:0,0,0</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="blue">
        <xs:annotation>
          <xs:documentation>Hex: #0000FF / RGB:0,0,255</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fuchsia">
        <xs:annotation>
          <xs:documentation>Hex: #FF00FF / RGB:255,0,255</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="gray">
        <xs:annotation>
          <xs:documentation>Hex: #808080 / RGB:128,128,128</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="green">
        <xs:annotation>
          <xs:documentation>Hex: #008000 / RGB:0,128,0</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="lime">
        <xs:annotation>
          <xs:documentation>Hex: #00FF00 / RGB:0,255,0</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="maroon">
        <xs:annotation>
          <xs:documentation>Hex: #800000 / RGB:128,0,0</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="navy">
        <xs:annotation>
          <xs:documentation>Hex: #000080 / RGB:0,0,128</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="olive">
        <xs:annotation>
          <xs:documentation>Hex: #808000 / RGB:128,128,0</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="purple">
        <xs:annotation>
          <xs:documentation>Hex: #800080 / RGB:128,0,128</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="red">
        <xs:annotation>
          <xs:documentation>Hex: #FF0000 / RGB:255,0,0</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="silver">
        <xs:annotation>
          <xs:documentation>Hex: #C0C0C0 / RGB:208,208,208</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="teal">
        <xs:annotation>
          <xs:documentation>Hex: #008080 / RGB:0,128,128</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="white">
        <xs:annotation>
          <xs:documentation>Hex: #FFFFFF / RGB:255,255,255</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="yellow">
        <xs:annotation>
          <xs:documentation>Hex: #FFFF00 / RGB:255,255,0</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.COLORVALUES">
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="#[0-9A-Fa-f]{6,6}"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="#[0-9A-Fa-f]{8,8}"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="rgb\((\s*(([01]?[0-9]?[0-9])|2[0-4][0-9]|25[0-5])\s*,\s*){2}([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\s*\)"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="rgba\(\s*(([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\s*,\s*){3}(0(\.\d+)?|1(\.0+)?)\s*\)|rgba\(\s*(((\d{1,2})?%|100%)\s*,\s*){2}(\d{1,2}%|100%)\s*,\s*(0(\.\d+)?|1(\.0+)?)\s*\)"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="hsl\(\s*((\d{1,2})|[12]\d{2}|3[0-5]\d|360)\s*,\s*(\d{1,2}%|100%)\s*,\s*(\d{1,2}%|100%)\s*\)"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="hsla\(\s*(\d{1,2}|[12]\d{2}|3[0-5]\d|360)\s*,\s*(\d{1,2}%|100%)\s*,\s*(\d{1,2}%|100%)\s*,\s*(0(\.\d+)?|1(\.0+)?)\s*\)"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.COLOR">
    <xs:union memberTypes="mei:data.COLORNAMES mei:data.COLORVALUES"/>
  </xs:simpleType>
  <xs:simpleType name="data.DEGREES">
    <xs:restriction base="xs:decimal">
      <xs:maxInclusive value="360.0"/>
      <xs:minInclusive value="-360.0"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.DURATION">
    <xs:union memberTypes="mei:data.DURATION.cmn mei:data.DURATION.mensural"/>
  </xs:simpleType>
  <xs:simpleType name="data.DURATION.additive">
    <xs:restriction base="xs:token">
      <xs:pattern value="(long|breve|1|2|4|8|16|32|64|128|256|1024|2048)(\.)*"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.DURATION.gestural.prop">
    <xs:restriction base="xs:token">
      <xs:pattern value="[0-9]+(\.)*r"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.DURATION.gestural.pat">
    <xs:restriction base="xs:token">
      <xs:pattern value="[0-9]+(p|(\.[0-9]+)?(b|s))"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.DURATION.gestural">
    <xs:union memberTypes="mei:data.DURATION.gestural.prop mei:data.DURATION.gestural.pat mei:data.DURATION.mensural"/>
  </xs:simpleType>
  <xs:simpleType name="data.ENCLOSURE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="paren">
        <xs:annotation>
          <xs:documentation>Parentheses.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="brack">
        <xs:annotation>
          <xs:documentation>Square brackets.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.FILL">
    <xs:restriction base="xs:token">
      <xs:enumeration value="void">
        <xs:annotation>
          <xs:documentation>Unfilled</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="solid">
        <xs:annotation>
          <xs:documentation>Filled</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="top">
        <xs:annotation>
          <xs:documentation>Top half filled</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="bottom">
        <xs:annotation>
          <xs:documentation>Bottom half filled</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="left">
        <xs:annotation>
          <xs:documentation>Left half filled</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="right">
        <xs:annotation>
          <xs:documentation>Right half filled</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.FINGER.FRET">
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:positiveInteger">
          <xs:minInclusive value="1"/>
          <xs:maxInclusive value="4"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="x|o|t"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.FONTFAMILY">
    <xs:restriction base="xs:token"/>
  </xs:simpleType>
  <xs:simpleType name="data.FONTNAME">
    <xs:restriction base="xs:token"/>
  </xs:simpleType>
  <xs:simpleType name="data.FONTSIZE">
    <xs:union memberTypes="mei:data.FONTSIZENUMERIC mei:data.FONTSIZETERM mei:data.PERCENT"/>
  </xs:simpleType>
  <xs:simpleType name="data.FONTSIZENUMERIC">
    <xs:restriction base="xs:token">
      <xs:pattern value="\d*(\.\d+)?(pt)?"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.FONTSIZETERM">
    <xs:restriction base="xs:token">
      <xs:enumeration value="xx-small">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="x-small">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="small">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="medium">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="large">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="x-large">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="xx-large">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smaller">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="larger">
        <xs:annotation>
          <xs:documentation>Relative font size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.FONTSTYLE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="italic">
        <xs:annotation>
          <xs:documentation>Text slants to right.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="normal">
        <xs:annotation>
          <xs:documentation>Unadorned.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="oblique">
        <xs:annotation>
          <xs:documentation>Text slants to the left.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.FONTWEIGHT">
    <xs:restriction base="xs:token">
      <xs:enumeration value="bold">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="normal">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.FRET">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="1"/>
      <xs:maxInclusive value="5"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.FRETNUMBER">
    <xs:restriction base="xs:nonNegativeInteger"/>
  </xs:simpleType>
  <xs:simpleType name="data.GLISSANDO">
    <xs:restriction base="xs:token">
      <xs:enumeration value="i">
        <xs:annotation>
          <xs:documentation>First note/chord in glissando.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="m">
        <xs:annotation>
          <xs:documentation>Note/chord that's neither first nor last in glissando.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="t">
        <xs:annotation>
          <xs:documentation>Last note in glissando.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.GRACE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="acc">
        <xs:annotation>
          <xs:documentation>Time "stolen" from following note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="unacc">
        <xs:annotation>
          <xs:documentation>Time "stolen" from previous note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="unknown">
        <xs:annotation>
          <xs:documentation>No interpretation regarding performed value of grace note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.HEADSHAPE">
    <xs:union memberTypes="mei:data.HEADSHAPE.list mei:data.NMTOKEN"/>
  </xs:simpleType>
  <xs:simpleType name="data.HEADSHAPE.list">
    <xs:restriction base="xs:token">
      <xs:enumeration value="quarter">
        <xs:annotation>
          <xs:documentation>Filled, rotated oval (Unicode 1D158).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="half">
        <xs:annotation>
          <xs:documentation>Unfilled, rotated oval (Unicode 1D157).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="whole">
        <xs:annotation>
          <xs:documentation>Unfilled, rotated oval (Unicode 1D15D).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="backslash">
        <xs:annotation>
          <xs:documentation>Unfilled backslash (~ reflection of Unicode 1D10D).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="circle">
        <xs:annotation>
          <xs:documentation>Unfilled circle (Unicode 25CB).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="+">
        <xs:annotation>
          <xs:documentation>Plus sign (Unicode 1D144).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="diamond">
        <xs:annotation>
          <xs:documentation>Unfilled diamond (Unicode 1D1B9).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="isotriangle">
        <xs:annotation>
          <xs:documentation>Unfilled isosceles triangle (Unicode 1D148).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="oval">
        <xs:annotation>
          <xs:documentation>Unfilled, unrotated oval (Unicode 2B2D).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="piewedge">
        <xs:annotation>
          <xs:documentation>Unfilled downward-pointing wedge (Unicode 1D154).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rectangle">
        <xs:annotation>
          <xs:documentation>Unfilled rectangle (Unicode 25AD).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rtriangle">
        <xs:annotation>
          <xs:documentation>Unfilled right triangle (Unicode 1D14A).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="semicircle">
        <xs:annotation>
          <xs:documentation>Unfilled semi-circle (Unicode 1D152).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="slash">
        <xs:annotation>
          <xs:documentation>Unfilled slash (~ Unicode 1D10D).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="square">
        <xs:annotation>
          <xs:documentation>Unfilled square (Unicode 1D146).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="x">
        <xs:annotation>
          <xs:documentation>X (Unicode 1D143).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.HORIZONTALALIGNMENT">
    <xs:restriction base="xs:token">
      <xs:enumeration value="left">
        <xs:annotation>
          <xs:documentation>Left aligned.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="right">
        <xs:annotation>
          <xs:documentation>Right aligned.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="center">
        <xs:annotation>
          <xs:documentation>Centered.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="justify">
        <xs:annotation>
          <xs:documentation>Left and right aligned.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.INEUMEFORM">
    <xs:restriction base="xs:token">
      <xs:enumeration value="liquescent1">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="liquescent2">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tied">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tiedliquescent1">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tiedliquescent2">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.INEUMENAME">
    <xs:restriction base="xs:token">
      <xs:enumeration value="pessubpunctis">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="climacus">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="scandicus">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="bistropha">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tristropha">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="pressusminor">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="pressusmaior">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.INTERVAL.HARMONIC">
    <xs:restriction base="xs:token">
      <xs:pattern value="[AdMmP][0-9]+"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.INTERVAL.MELODIC">
    <xs:union memberTypes="xs:decimal">
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="u|d|s"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="(\+|\-)?[AdMmP][0-9]+"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.ISODATE">
    <xs:union memberTypes="xs:date xs:gYear xs:gMonth xs:gDay xs:gYearMonth xs:gMonthDay xs:time xs:dateTime">
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="[0-9.,DHMPRSTWYZ/:+\-]+"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.ISOTIME">
    <xs:restriction base="xs:time"/>
  </xs:simpleType>
  <xs:simpleType name="data.KEYSIGNATURE">
    <xs:restriction base="xs:token">
      <xs:pattern value="mixed|0|([1-9]|1[0-2])[f|s]"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.KEYSIGTOKEN">
    <xs:restriction base="xs:token">
      <xs:pattern value="[a-g][0-9](s|f|ss|x|ff|xs|sx|ts|tf|n|nf|ns|su|sd|fu|fd|nu|nd|1qf|3qf|1qs|3qs)"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.LAYERSCHEME">
    <xs:restriction base="xs:token">
      <xs:enumeration value="1">
        <xs:annotation>
          <xs:documentation>Single layer.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="2o">
        <xs:annotation>
          <xs:documentation>Two layers with opposing stems.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="2f">
        <xs:annotation>
          <xs:documentation>Two layers with 'floating' stems.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="3o">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="3f">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.LIGATUREFORM">
    <xs:restriction base="xs:token">
      <xs:enumeration value="recta">
        <xs:annotation>
          <xs:documentation>Notes are "squeezed" together.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="obliqua">
        <xs:annotation>
          <xs:documentation>Individual notes are replaced by an oblique figure.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.LINEFORM">
    <xs:restriction base="xs:token">
      <xs:enumeration value="dashed">
        <xs:annotation>
          <xs:documentation>Dashed line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dotted">
        <xs:annotation>
          <xs:documentation>Dotted line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="solid">
        <xs:annotation>
          <xs:documentation>Straight, uninterrupted line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="wavy">
        <xs:annotation>
          <xs:documentation>Undulating line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.LINESTARTENDSYMBOL">
    <xs:restriction base="xs:token">
      <xs:enumeration value="angledown">
        <xs:annotation>
          <xs:documentation>90 degree turn down (similar to Unicode 231D at end of line, 231C at start).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="angleup">
        <xs:annotation>
          <xs:documentation>90 degree turn up (similar to Unicode 231F at end of line, 231E at start).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="angleright">
        <xs:annotation>
          <xs:documentation>90 degree turn right (syntactic sugar for "angledown" for vertical or angled lines).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="angleleft">
        <xs:annotation>
          <xs:documentation>90 degree turn left (syntactic sugar for "angleup" for vertical or angled lines).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="arrow">
        <xs:annotation>
          <xs:documentation>Filled, triangular arrowhead (similar to SMuFL U+EB78).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="arrowopen">
        <xs:annotation>
          <xs:documentation>Open triangular arrowhead (similar to SMuFL U+EB8A).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="arrowwhite">
        <xs:annotation>
          <xs:documentation>Unfilled, triangular arrowhead (similar to SMuFL U+EB82).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="harpoonleft">
        <xs:annotation>
          <xs:documentation>Harpoon-shaped arrowhead left of line (similar to arrowhead of Unicode U+21BD).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="harpoonright">
        <xs:annotation>
          <xs:documentation>Harpoon-shaped arrowhead right of line (similar to arrowhead of Unicode U+21BC).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="none">
        <xs:annotation>
          <xs:documentation>No start symbol.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.LINESTARTENDSYMBOLSIZE">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="1"/>
      <xs:maxInclusive value="9"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.LINEWIDTH">
    <xs:union memberTypes="mei:data.LINEWIDTHTERM mei:data.MEASUREMENTABS"/>
  </xs:simpleType>
  <xs:simpleType name="data.LINEWIDTHTERM">
    <xs:restriction base="xs:token">
      <xs:enumeration value="narrow">
        <xs:annotation>
          <xs:documentation>Default line width.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="medium">
        <xs:annotation>
          <xs:documentation>Twice as wide as narrow.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="wide">
        <xs:annotation>
          <xs:documentation>Twice as wide as medium.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MEASUREBEAT">
    <xs:restriction base="xs:token">
      <xs:pattern value="([0-9]+m\s*\+\s*)?[0-9]+(\.?[0-9]*)?"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MEASUREBEATOFFSET">
    <xs:restriction base="xs:token">
      <xs:pattern value="(\+|-)?[0-9]+m\+[0-9]+(\.[0-9]*)?"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MEASUREMENTABS">
    <xs:restriction base="xs:token">
      <xs:pattern value="(\+)?\d+(\.\d+)?(cm|mm|in|pt|pc|px|vu)?"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MEASUREMENTREL">
    <xs:restriction base="xs:token">
      <xs:pattern value="(\+|-)?\d+(\.\d+)?(cm|mm|in|pt|pc|px|vu)?"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MELODICFUNCTION">
    <xs:restriction base="xs:token">
      <xs:enumeration value="aln">
        <xs:annotation>
          <xs:documentation>Accented lower neighbor.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ant">
        <xs:annotation>
          <xs:documentation>Anticipation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="app">
        <xs:annotation>
          <xs:documentation>Appogiatura.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="apt">
        <xs:annotation>
          <xs:documentation>Accented passing tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="arp">
        <xs:annotation>
          <xs:documentation>Arpeggio tone (chordal tone).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="arp7">
        <xs:annotation>
          <xs:documentation>Arpeggio tone (7th added to the chord).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="aun">
        <xs:annotation>
          <xs:documentation>Accented upper neighbor.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="chg">
        <xs:annotation>
          <xs:documentation>Changing tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cln">
        <xs:annotation>
          <xs:documentation>Chromatic lower neighbor.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ct">
        <xs:annotation>
          <xs:documentation>Chord tone (i.e., not an embellishment).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ct7">
        <xs:annotation>
          <xs:documentation>Chord tone (7th added to the chord).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cun">
        <xs:annotation>
          <xs:documentation>Chromatic upper neighbor.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cup">
        <xs:annotation>
          <xs:documentation>Chromatic unaccented passing tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="et">
        <xs:annotation>
          <xs:documentation>Escape tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ln">
        <xs:annotation>
          <xs:documentation>Lower neighbor.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ped">
        <xs:annotation>
          <xs:documentation>Pedal tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rep">
        <xs:annotation>
          <xs:documentation>Repeated tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ret">
        <xs:annotation>
          <xs:documentation>Retardation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="23ret">
        <xs:annotation>
          <xs:documentation>2-3 retardation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="78ret">
        <xs:annotation>
          <xs:documentation>7-8 retardation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sus">
        <xs:annotation>
          <xs:documentation>Suspension.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="43sus">
        <xs:annotation>
          <xs:documentation>4-3 suspension.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="98sus">
        <xs:annotation>
          <xs:documentation>9-8 suspension.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="76sus">
        <xs:annotation>
          <xs:documentation>7-6 suspension.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="un">
        <xs:annotation>
          <xs:documentation>Upper neighbor.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="un7">
        <xs:annotation>
          <xs:documentation>Upper neighbor (7th added to the chord).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="upt">
        <xs:annotation>
          <xs:documentation>Unaccented passing tone.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="upt7">
        <xs:annotation>
          <xs:documentation>Unaccented passing tone (7th added to the chord).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MENSURATIONSIGN">
    <xs:restriction base="xs:token">
      <xs:enumeration value="C">
        <xs:annotation>
          <xs:documentation>Tempus imperfectum.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="O">
        <xs:annotation>
          <xs:documentation>Tempus perfectum.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.METERSIGN">
    <xs:restriction base="xs:token">
      <xs:enumeration value="common">
        <xs:annotation>
          <xs:documentation>Common time; i.e. 4/4.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cut">
        <xs:annotation>
          <xs:documentation>Cut time; i.e. 2/2.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MIDICHANNEL">
    <xs:restriction base="xs:positiveInteger">
      <xs:maxInclusive value="16"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MIDIBPM">
    <xs:restriction base="xs:positiveInteger"/>
  </xs:simpleType>
  <xs:simpleType name="data.MIDIMSPB">
    <xs:restriction base="xs:positiveInteger"/>
  </xs:simpleType>
  <xs:simpleType name="data.MIDINAMES">
    <xs:restriction base="xs:token">
      <xs:enumeration value="Acoustic_Grand_Piano">
        <xs:annotation>
          <xs:documentation>Program #0.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Bright_Acoustic_Piano">
        <xs:annotation>
          <xs:documentation>Program #1.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Grand_Piano">
        <xs:annotation>
          <xs:documentation>Program #2.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Honky-tonk_Piano">
        <xs:annotation>
          <xs:documentation>Program #3.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Piano_1">
        <xs:annotation>
          <xs:documentation>Program #4.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Piano_2">
        <xs:annotation>
          <xs:documentation>Program #5.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Harpsichord">
        <xs:annotation>
          <xs:documentation>Program #6.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Clavi">
        <xs:annotation>
          <xs:documentation>Program #7.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Celesta">
        <xs:annotation>
          <xs:documentation>Program #8.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Glockenspiel">
        <xs:annotation>
          <xs:documentation>Program #9.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Music_Box">
        <xs:annotation>
          <xs:documentation>Program #10.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Vibraphone">
        <xs:annotation>
          <xs:documentation>Program #11.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Marimba">
        <xs:annotation>
          <xs:documentation>Program #12.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Xylophone">
        <xs:annotation>
          <xs:documentation>Program #13.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Tubular_Bells">
        <xs:annotation>
          <xs:documentation>Program #14.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Dulcimer">
        <xs:annotation>
          <xs:documentation>Program #15.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Drawbar_Organ">
        <xs:annotation>
          <xs:documentation>Program #16.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Percussive_Organ">
        <xs:annotation>
          <xs:documentation>Program #17.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Rock_Organ">
        <xs:annotation>
          <xs:documentation>Program #18.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Church_Organ">
        <xs:annotation>
          <xs:documentation>Program #19.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Reed_Organ">
        <xs:annotation>
          <xs:documentation>Program #20.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Accordion">
        <xs:annotation>
          <xs:documentation>Program #21.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Harmonica">
        <xs:annotation>
          <xs:documentation>Program #22.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Tango_Accordion">
        <xs:annotation>
          <xs:documentation>Program #23.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Acoustic_Guitar_nylon">
        <xs:annotation>
          <xs:documentation>Program #24.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Acoustic_Guitar_steel">
        <xs:annotation>
          <xs:documentation>Program #25.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Guitar_jazz">
        <xs:annotation>
          <xs:documentation>Program #26.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Guitar_clean">
        <xs:annotation>
          <xs:documentation>Program #27.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Guitar_muted">
        <xs:annotation>
          <xs:documentation>Program #28.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Overdriven_Guitar">
        <xs:annotation>
          <xs:documentation>Program #29.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Distortion_Guitar">
        <xs:annotation>
          <xs:documentation>Program #30.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Guitar_harmonics">
        <xs:annotation>
          <xs:documentation>Program #31.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Acoustic_Bass">
        <xs:annotation>
          <xs:documentation>Program #32.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Bass_finger">
        <xs:annotation>
          <xs:documentation>Program #33.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Bass_pick">
        <xs:annotation>
          <xs:documentation>Program #34.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Fretless_Bass">
        <xs:annotation>
          <xs:documentation>Program #35.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Slap_Bass_1">
        <xs:annotation>
          <xs:documentation>Program #36.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Slap_Bass_2">
        <xs:annotation>
          <xs:documentation>Program #37.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Synth_Bass_1">
        <xs:annotation>
          <xs:documentation>Program #38.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Synth_Bass_2">
        <xs:annotation>
          <xs:documentation>Program #39.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Violin">
        <xs:annotation>
          <xs:documentation>Program #40.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Viola">
        <xs:annotation>
          <xs:documentation>Program #41.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Cello">
        <xs:annotation>
          <xs:documentation>Program #42.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Contrabass">
        <xs:annotation>
          <xs:documentation>Program #43.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Tremolo_Strings">
        <xs:annotation>
          <xs:documentation>Program #44.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pizzicato_Strings">
        <xs:annotation>
          <xs:documentation>Program #45.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Orchestral_Harp">
        <xs:annotation>
          <xs:documentation>Program #46.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Timpani">
        <xs:annotation>
          <xs:documentation>Program #47.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="String_Ensemble_1">
        <xs:annotation>
          <xs:documentation>Program #48.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="String_Ensemble_2">
        <xs:annotation>
          <xs:documentation>Program #49.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="SynthStrings_1">
        <xs:annotation>
          <xs:documentation>Program #50.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="SynthStrings_2">
        <xs:annotation>
          <xs:documentation>Program #51.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Choir_Aahs">
        <xs:annotation>
          <xs:documentation>Program #52.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Voice_Oohs">
        <xs:annotation>
          <xs:documentation>Program #53.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Synth_Voice">
        <xs:annotation>
          <xs:documentation>Program #54.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Orchestra_Hit">
        <xs:annotation>
          <xs:documentation>Program #55.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Trumpet">
        <xs:annotation>
          <xs:documentation>Program #56.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Trombone">
        <xs:annotation>
          <xs:documentation>Program #57.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Tuba">
        <xs:annotation>
          <xs:documentation>Program #58.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Muted_Trumpet">
        <xs:annotation>
          <xs:documentation>Program #59.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="French_Horn">
        <xs:annotation>
          <xs:documentation>Program #60.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Brass_Section">
        <xs:annotation>
          <xs:documentation>Program #61.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="SynthBrass_1">
        <xs:annotation>
          <xs:documentation>Program #62.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="SynthBrass_2">
        <xs:annotation>
          <xs:documentation>Program #63.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Soprano_Sax">
        <xs:annotation>
          <xs:documentation>Program #64.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Alto_Sax">
        <xs:annotation>
          <xs:documentation>Program #65.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Tenor_Sax">
        <xs:annotation>
          <xs:documentation>Program #66.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Baritone_Sax">
        <xs:annotation>
          <xs:documentation>Program #67.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Oboe">
        <xs:annotation>
          <xs:documentation>Program #68.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="English_Horn">
        <xs:annotation>
          <xs:documentation>Program #69.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Bassoon">
        <xs:annotation>
          <xs:documentation>Program #70.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Clarinet">
        <xs:annotation>
          <xs:documentation>Program #71.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Piccolo">
        <xs:annotation>
          <xs:documentation>Program #72.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Flute">
        <xs:annotation>
          <xs:documentation>Program #73.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Recorder">
        <xs:annotation>
          <xs:documentation>Program #74.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pan_Flute">
        <xs:annotation>
          <xs:documentation>Program #75.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Blown_Bottle">
        <xs:annotation>
          <xs:documentation>Program #76.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Shakuhachi">
        <xs:annotation>
          <xs:documentation>Program #77.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Whistle">
        <xs:annotation>
          <xs:documentation>Program #78.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Ocarina">
        <xs:annotation>
          <xs:documentation>Program #79.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_1_square">
        <xs:annotation>
          <xs:documentation>Program #80.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_2_sawtooth">
        <xs:annotation>
          <xs:documentation>Program #81.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_3_calliope">
        <xs:annotation>
          <xs:documentation>Program #82.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_4_chiff">
        <xs:annotation>
          <xs:documentation>Program #83.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_5_charang">
        <xs:annotation>
          <xs:documentation>Program #84.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_6_voice">
        <xs:annotation>
          <xs:documentation>Program #85.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_7_fifths">
        <xs:annotation>
          <xs:documentation>Program #86.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Lead_8_bass_and_lead">
        <xs:annotation>
          <xs:documentation>Program #87.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_1_new_age">
        <xs:annotation>
          <xs:documentation>Program #88.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_2_warm">
        <xs:annotation>
          <xs:documentation>Program #89.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_3_polysynth">
        <xs:annotation>
          <xs:documentation>Program #90.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_4_choir">
        <xs:annotation>
          <xs:documentation>Program #91.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_5_bowed">
        <xs:annotation>
          <xs:documentation>Program #92.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_6_metallic">
        <xs:annotation>
          <xs:documentation>Program #93.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_7_halo">
        <xs:annotation>
          <xs:documentation>Program #94.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pad_8_sweep">
        <xs:annotation>
          <xs:documentation>Program #95.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_1_rain">
        <xs:annotation>
          <xs:documentation>Program #96.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_2_soundtrack">
        <xs:annotation>
          <xs:documentation>Program #97.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_3_crystal">
        <xs:annotation>
          <xs:documentation>Program #98.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_4_atmosphere">
        <xs:annotation>
          <xs:documentation>Program #99.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_5_brightness">
        <xs:annotation>
          <xs:documentation>Program #100.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_6_goblins">
        <xs:annotation>
          <xs:documentation>Program #101.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_7_echoes">
        <xs:annotation>
          <xs:documentation>Program #102.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="FX_8_sci-fi">
        <xs:annotation>
          <xs:documentation>Program #103.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Sitar">
        <xs:annotation>
          <xs:documentation>Program #104.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Banjo">
        <xs:annotation>
          <xs:documentation>Program #105.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Shamisen">
        <xs:annotation>
          <xs:documentation>Program #106.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Koto">
        <xs:annotation>
          <xs:documentation>Program #107.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Kalimba">
        <xs:annotation>
          <xs:documentation>Program #108.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Bagpipe">
        <xs:annotation>
          <xs:documentation>Program #109.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Fiddle">
        <xs:annotation>
          <xs:documentation>Program #110.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Shanai">
        <xs:annotation>
          <xs:documentation>Program #111.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Tinkle_Bell">
        <xs:annotation>
          <xs:documentation>Program #112.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Agogo">
        <xs:annotation>
          <xs:documentation>Program #113.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Steel_Drums">
        <xs:annotation>
          <xs:documentation>Program #114.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Woodblock">
        <xs:annotation>
          <xs:documentation>Program #115.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Taiko_Drum">
        <xs:annotation>
          <xs:documentation>Program #116.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Melodic_Tom">
        <xs:annotation>
          <xs:documentation>Program #117.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Synth_Drum">
        <xs:annotation>
          <xs:documentation>Program #118.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Reverse_Cymbal">
        <xs:annotation>
          <xs:documentation>Program #119.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Guitar_Fret_Noise">
        <xs:annotation>
          <xs:documentation>Program #120.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Breath_Noise">
        <xs:annotation>
          <xs:documentation>Program #121.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Seashore">
        <xs:annotation>
          <xs:documentation>Program #122.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Bird_Tweet">
        <xs:annotation>
          <xs:documentation>Program #123.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Telephone_Ring">
        <xs:annotation>
          <xs:documentation>Program #124.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Helicopter">
        <xs:annotation>
          <xs:documentation>Program #125.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Applause">
        <xs:annotation>
          <xs:documentation>Program #126.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Gunshot">
        <xs:annotation>
          <xs:documentation>Program #127.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Acoustic_Bass_Drum">
        <xs:annotation>
          <xs:documentation>Key #35.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Bass_Drum_1">
        <xs:annotation>
          <xs:documentation>Key #36.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Side_Stick">
        <xs:annotation>
          <xs:documentation>Key #37.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Acoustic_Snare">
        <xs:annotation>
          <xs:documentation>Key #38.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Hand_Clap">
        <xs:annotation>
          <xs:documentation>Key #39.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Electric_Snare">
        <xs:annotation>
          <xs:documentation>Key #40.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low_Floor_Tom">
        <xs:annotation>
          <xs:documentation>Key #41.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Closed_Hi_Hat">
        <xs:annotation>
          <xs:documentation>Key #42.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="High_Floor_Tom">
        <xs:annotation>
          <xs:documentation>Key #43.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Pedal_Hi-Hat">
        <xs:annotation>
          <xs:documentation>Key #44.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low_Tom">
        <xs:annotation>
          <xs:documentation>Key #45.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Open_Hi-Hat">
        <xs:annotation>
          <xs:documentation>Key #46.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low-Mid_Tom">
        <xs:annotation>
          <xs:documentation>Key #47.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Hi-Mid_Tom">
        <xs:annotation>
          <xs:documentation>Key #48.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Crash_Cymbal_1">
        <xs:annotation>
          <xs:documentation>Key #49.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="High_Tom">
        <xs:annotation>
          <xs:documentation>Key #50.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Ride_Cymbal_1">
        <xs:annotation>
          <xs:documentation>Key #51.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Chinese_Cymbal">
        <xs:annotation>
          <xs:documentation>Key #52.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Ride_Bell">
        <xs:annotation>
          <xs:documentation>Key #53.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Tambourine">
        <xs:annotation>
          <xs:documentation>Key #54.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Splash_Cymbal">
        <xs:annotation>
          <xs:documentation>Key #55.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Cowbell">
        <xs:annotation>
          <xs:documentation>Key #56.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Crash_Cymbal_2">
        <xs:annotation>
          <xs:documentation>Key #57.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Vibraslap">
        <xs:annotation>
          <xs:documentation>Key #58.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Ride_Cymbal_2">
        <xs:annotation>
          <xs:documentation>Key #59.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Hi_Bongo">
        <xs:annotation>
          <xs:documentation>Key #60.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low_Bongo">
        <xs:annotation>
          <xs:documentation>Key #61.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Mute_Hi_Conga">
        <xs:annotation>
          <xs:documentation>Key #62.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Open_Hi_Conga">
        <xs:annotation>
          <xs:documentation>Key #63.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low_Conga">
        <xs:annotation>
          <xs:documentation>Key #64.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="High_Timbale">
        <xs:annotation>
          <xs:documentation>Key #65.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low_Timbale">
        <xs:annotation>
          <xs:documentation>Key #66.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="High_Agogo">
        <xs:annotation>
          <xs:documentation>Key #67.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low_Agogo">
        <xs:annotation>
          <xs:documentation>Key #68.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Cabasa">
        <xs:annotation>
          <xs:documentation>Key #69.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Maracas">
        <xs:annotation>
          <xs:documentation>Key #70.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Short_Whistle">
        <xs:annotation>
          <xs:documentation>Key #71.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Long_Whistle">
        <xs:annotation>
          <xs:documentation>Key #72.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Short_Guiro">
        <xs:annotation>
          <xs:documentation>Key #73.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Long_Guiro">
        <xs:annotation>
          <xs:documentation>Key #74.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Claves">
        <xs:annotation>
          <xs:documentation>Key #75.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Hi_Wood_Block">
        <xs:annotation>
          <xs:documentation>Key #76.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Low_Wood_Block">
        <xs:annotation>
          <xs:documentation>Key #77.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Mute_Cuica">
        <xs:annotation>
          <xs:documentation>Key #78.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Open_Cuica">
        <xs:annotation>
          <xs:documentation>Key #79.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Mute_Triangle">
        <xs:annotation>
          <xs:documentation>Key #80.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="Open_Triangle">
        <xs:annotation>
          <xs:documentation>Key #81.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MIDIVALUE">
    <xs:restriction base="xs:nonNegativeInteger">
      <xs:maxInclusive value="127"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MODE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="major">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="minor">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dorian">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="phrygian">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="lydian">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="mixolydian">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="aeolian">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="locrian">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MODUSMAIOR">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="2"/>
      <xs:maxInclusive value="3"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MODUSMINOR">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="2"/>
      <xs:maxInclusive value="3"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.MUSICFONT">
    <xs:restriction base="xs:token"/>
  </xs:simpleType>
  <xs:simpleType name="data.NMTOKEN">
    <xs:restriction base="xs:NMTOKEN"/>
  </xs:simpleType>
  <xs:simpleType name="data.NOTATIONTYPE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="cmn">
        <xs:annotation>
          <xs:documentation>Common Music Notation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="mensural">
        <xs:annotation>
          <xs:documentation>Mensural notation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="mensural.black">
        <xs:annotation>
          <xs:documentation>Black mensural notation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="mensural.white">
        <xs:annotation>
          <xs:documentation>White mensural notation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="neume">
        <xs:annotation>
          <xs:documentation>Neumatic notation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tab">
        <xs:annotation>
          <xs:documentation>Tablature notation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.NOTEHEADMODIFIER">
    <xs:union memberTypes="mei:data.NOTEHEADMODIFIER.list mei:data.NOTEHEADMODIFIER.pat"/>
  </xs:simpleType>
  <xs:simpleType name="data.NOTEHEADMODIFIER.list">
    <xs:restriction base="xs:token">
      <xs:enumeration value="slash">
        <xs:annotation>
          <xs:documentation>Slash (upper right to lower left).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="backslash">
        <xs:annotation>
          <xs:documentation>Backslash (upper left to lower right).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="vline">
        <xs:annotation>
          <xs:documentation>Vertical line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="hline">
        <xs:annotation>
          <xs:documentation>Horizontal line.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="centerdot">
        <xs:annotation>
          <xs:documentation>Center dot.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="paren">
        <xs:annotation>
          <xs:documentation>Enclosing parentheses.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="brack">
        <xs:annotation>
          <xs:documentation>Enclosing square brackets.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="box">
        <xs:annotation>
          <xs:documentation>Enclosing box.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="circle">
        <xs:annotation>
          <xs:documentation>Enclosing circle.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dblwhole">
        <xs:annotation>
          <xs:documentation>Enclosing "fences".</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.NOTEHEADMODIFIER.pat">
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:pattern value="centertext\((A|B|C|D|E|F|G)(f|♭|n|♮|s|♯)?\)"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:pattern value="centertext\(H(s|♯)?\)"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.OCTAVE">
    <xs:restriction base="xs:nonNegativeInteger">
      <xs:maxInclusive value="9"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.OCTAVE.DIS">
    <xs:restriction base="xs:positiveInteger">
      <xs:pattern value="8|15|22"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.ORIENTATION">
    <xs:restriction base="xs:token">
      <xs:pattern value="reversed|90CW|90CCW"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.OTHERSTAFF">
    <xs:restriction base="xs:token">
      <xs:enumeration value="above">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="below">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.PAGE.PANELS">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="1"/>
      <xs:maxInclusive value="2"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.PERCENT">
    <xs:restriction base="xs:token">
      <xs:pattern value="[0-9]+(\.?[0-9]*)?%"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.PGSCALE">
    <xs:restriction base="mei:data.PERCENT"/>
  </xs:simpleType>
  <xs:simpleType name="data.PITCHCLASS">
    <xs:restriction base="xs:nonNegativeInteger">
      <xs:maxInclusive value="11"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.PITCHNAME">
    <xs:restriction base="xs:token">
      <xs:pattern value="[a-g]"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.PITCHNAME.GES">
    <xs:restriction base="xs:token">
      <xs:pattern value="[a-g]|none"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.PITCHNUMBER">
    <xs:restriction base="xs:nonNegativeInteger"/>
  </xs:simpleType>
  <xs:simpleType name="data.PLACE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="above">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="below">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.PROLATIO">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="2"/>
      <xs:maxInclusive value="3"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.ROTATION">
    <xs:union memberTypes="mei:data.DEGREES mei:data.ROTATIONDIRECTION"/>
  </xs:simpleType>
  <xs:simpleType name="data.ROTATIONDIRECTION">
    <xs:restriction base="xs:token">
      <xs:enumeration value="none">
        <xs:annotation>
          <xs:documentation>No rotation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="down">
        <xs:annotation>
          <xs:documentation>Rotated 180 degrees.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="left">
        <xs:annotation>
          <xs:documentation>Rotated 270 degrees clockwise.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ne">
        <xs:annotation>
          <xs:documentation>Rotated 45 degrees clockwise.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="nw">
        <xs:annotation>
          <xs:documentation>Rotated 315 degrees clockwise.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="se">
        <xs:annotation>
          <xs:documentation>Rotated 135 degrees clockwise.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sw">
        <xs:annotation>
          <xs:documentation>Rotated 225 degrees clockwise.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.SCALEDEGREE">
    <xs:restriction base="xs:token">
      <xs:pattern value="(\^|v)?[1-7](\+|\-)?"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.SIZE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="normal">
        <xs:annotation>
          <xs:documentation>Default size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cue">
        <xs:annotation>
          <xs:documentation>Reduced size.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.SLASH">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="1"/>
      <xs:maxInclusive value="6"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.SLUR">
    <xs:restriction base="xs:token">
      <xs:pattern value="[i|m|t][1-6]"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.STAFFLOC">
    <xs:restriction base="xs:integer"/>
  </xs:simpleType>
  <xs:simpleType name="data.STAFFREL">
    <xs:restriction base="xs:token">
      <xs:enumeration value="above">
        <xs:annotation>
          <xs:documentation>Written above staff.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="below">
        <xs:annotation>
          <xs:documentation>Written below staff.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="within">
        <xs:annotation>
          <xs:documentation>Written on staff.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.STEMDIRECTION">
    <xs:union memberTypes="mei:data.STEMDIRECTION.basic mei:data.STEMDIRECTION.extended"/>
  </xs:simpleType>
  <xs:simpleType name="data.STEMDIRECTION.basic">
    <xs:restriction base="xs:token">
      <xs:enumeration value="up">
        <xs:annotation>
          <xs:documentation>Stem points upwards.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="down">
        <xs:annotation>
          <xs:documentation>Stem points downwards.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.STEMDIRECTION.extended">
    <xs:restriction base="xs:token">
      <xs:enumeration value="left">
        <xs:annotation>
          <xs:documentation>Stem points left.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="right">
        <xs:annotation>
          <xs:documentation>Stem points right.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ne">
        <xs:annotation>
          <xs:documentation>Stem points up and right.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="se">
        <xs:annotation>
          <xs:documentation>Stem points down and right.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="nw">
        <xs:annotation>
          <xs:documentation>Stem points up and left.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sw">
        <xs:annotation>
          <xs:documentation>Stem points down and left.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.STEMMODIFIER">
    <xs:restriction base="xs:token">
      <xs:enumeration value="none">
        <xs:annotation>
          <xs:documentation>No modifications to stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="1slash">
        <xs:annotation>
          <xs:documentation>1 slash through stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="2slash">
        <xs:annotation>
          <xs:documentation>2 slashes through stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="3slash">
        <xs:annotation>
          <xs:documentation>3 slashes through stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="4slash">
        <xs:annotation>
          <xs:documentation>4 slashes through stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="5slash">
        <xs:annotation>
          <xs:documentation>5 slashes through stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="6slash">
        <xs:annotation>
          <xs:documentation>6 slashes through stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sprech">
        <xs:annotation>
          <xs:documentation>X placed on stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="z">
        <xs:annotation>
          <xs:documentation>Z placed on stem.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.STEMPOSITION">
    <xs:restriction base="xs:token">
      <xs:enumeration value="left">
        <xs:annotation>
          <xs:documentation>Stem attached to left side of note head.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="right">
        <xs:annotation>
          <xs:documentation>Stem attached to right side of note head.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="center">
        <xs:annotation>
          <xs:documentation>Stem is originates from center of note head.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.STRINGNUMBER">
    <xs:restriction base="xs:positiveInteger"/>
  </xs:simpleType>
  <xs:simpleType name="data.TEMPERAMENT">
    <xs:restriction base="xs:token">
      <xs:enumeration value="equal">
        <xs:annotation>
          <xs:documentation>Equal or 12-tone temperament.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="just">
        <xs:annotation>
          <xs:documentation>Just intonation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="mean">
        <xs:annotation>
          <xs:documentation>Meantone intonation.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="pythagorean">
        <xs:annotation>
          <xs:documentation>Pythagorean tuning.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.TEMPOVALUE">
    <xs:restriction base="xs:decimal"/>
  </xs:simpleType>
  <xs:simpleType name="data.TEMPUS">
    <xs:restriction base="xs:positiveInteger">
      <xs:minInclusive value="2"/>
      <xs:maxInclusive value="3"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.TEXTRENDITIONLIST">
    <xs:restriction base="xs:token">
      <xs:enumeration value="italic">
        <xs:annotation>
          <xs:documentation>Italicized (slanted to right).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="oblique">
        <xs:annotation>
          <xs:documentation>Oblique (slanted to left).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smcaps">
        <xs:annotation>
          <xs:documentation>Small capitals.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="bold">
        <xs:annotation>
          <xs:documentation>Relative font weight.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="bolder">
        <xs:annotation>
          <xs:documentation>Relative font weight.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="lighter">
        <xs:annotation>
          <xs:documentation>Relative font weight.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="box">
        <xs:annotation>
          <xs:documentation>Enclosed in box.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="circle">
        <xs:annotation>
          <xs:documentation>Enclosed in ellipse/circle.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="dbox">
        <xs:annotation>
          <xs:documentation>Enclosed in diamond.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tbox">
        <xs:annotation>
          <xs:documentation>Enclosed in triangle.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="bslash">
        <xs:annotation>
          <xs:documentation>Struck through by '\' (back slash).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fslash">
        <xs:annotation>
          <xs:documentation>Struck through by '/' (forward slash).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="line-through">
        <xs:annotation>
          <xs:documentation>Struck through by '-'; may be qualified to indicate multiple lines, e.g. line-through(2).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="none">
        <xs:annotation>
          <xs:documentation>Not rendered, invisible.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="overline">
        <xs:annotation>
          <xs:documentation>Line above the text; may be qualified to indicate multiple lines, e.g. overline(3).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="overstrike">
        <xs:annotation>
          <xs:documentation>obscured by other text, such as 'XXXXX'</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="strike">
        <xs:annotation>
          <xs:documentation>Struck through by '-'; equivalent to line-through; may be qualified to indicate multiple lines, e.g. strike(3).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sub">
        <xs:annotation>
          <xs:documentation>Subscript.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="sup">
        <xs:annotation>
          <xs:documentation>Superscript.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="underline">
        <xs:annotation>
          <xs:documentation>Underlined; may be qualified to indicate multiple lines, e.g. underline(2).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="ltr">
        <xs:annotation>
          <xs:documentation>Left-to-right (BIDI embed).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rtl">
        <xs:annotation>
          <xs:documentation>Right-to-left (BIDI embed).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="lro">
        <xs:annotation>
          <xs:documentation>Left-to-right (BIDI override).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rlo">
        <xs:annotation>
          <xs:documentation>Right-to-left (BIDI override).</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.TEXTRENDITIONPAR">
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:pattern value="(underline|overline|line-through|strike)\(\d+\)"/>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:pattern value="(letter-spacing|line-height)\((\+|-)?\d+(\.\d+)?%?\)"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:union>
  </xs:simpleType>
  <xs:simpleType name="data.TEXTRENDITION">
    <xs:union memberTypes="mei:data.TEXTRENDITIONLIST mei:data.TEXTRENDITIONPAR"/>
  </xs:simpleType>
  <xs:simpleType name="data.TIE">
    <xs:restriction base="xs:token">
      <xs:pattern value="[i|m|t]"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.TSTAMPOFFSET">
    <xs:restriction base="xs:decimal"/>
  </xs:simpleType>
  <xs:simpleType name="data.TUPLET">
    <xs:restriction base="xs:token">
      <xs:pattern value="[i|m|t][1-6]"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.UNEUMEFORM">
    <xs:restriction base="xs:token">
      <xs:enumeration value="liquescent1">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="liquescent2">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="liquescent3">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="quilismatic">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rectangular">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="rhombic">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tied">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.UNEUMENAME">
    <xs:restriction base="xs:token">
      <xs:enumeration value="punctum">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="virga">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="pes">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="clivis">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="torculus">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="torculusresupinus">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="porrectus">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="porrectusflexus">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="apostropha">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="oriscus">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="pressusmaior">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="pressusminor">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="virgastrata">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.URI">
    <xs:restriction base="xs:anyURI"/>
  </xs:simpleType>
  <xs:group name="macro.anyXML">
    <xs:sequence>
      <xs:any processContents="skip"/>
    </xs:sequence>
  </xs:group>
  <xs:complexType name="macro.metaLike.page">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:pgHead"/>
      <xs:element minOccurs="0" ref="mei:pgFoot"/>
      <xs:element minOccurs="0" ref="mei:pgDesc"/>
    </xs:sequence>
  </xs:complexType>
  <xs:group name="macro.musicPart">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.frontLike"/>
      <xs:choice minOccurs="0">
        <xs:element ref="mei:body"/>
        <xs:element ref="mei:group"/>
      </xs:choice>
      <xs:group minOccurs="0" ref="mei:model.backLike"/>
    </xs:sequence>
  </xs:group>
  <xs:simpleType name="data.BETYPE">
    <xs:restriction base="xs:token">
      <xs:enumeration value="byte">
        <xs:annotation>
          <xs:documentation>Bytes.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smil">
        <xs:annotation>
          <xs:documentation>Synchronized Multimedia Integration Language.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="midi">
        <xs:annotation>
          <xs:documentation>MIDI clicks.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="mmc">
        <xs:annotation>
          <xs:documentation>MIDI machine code.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="mtc">
        <xs:annotation>
          <xs:documentation>MIDI time code.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smpte-25">
        <xs:annotation>
          <xs:documentation>SMPTE 25 EBU.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smpte-24">
        <xs:annotation>
          <xs:documentation>SMPTE 24 Film Sync.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smpte-df30">
        <xs:annotation>
          <xs:documentation>SMPTE 30 Drop.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smpte-ndf30">
        <xs:annotation>
          <xs:documentation>SMPTE 30 Non-Drop.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smpte-df29.97">
        <xs:annotation>
          <xs:documentation>SMPTE 29.97 Drop.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="smpte-ndf29.97">
        <xs:annotation>
          <xs:documentation>SMPTE 29.97 Non-Drop.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="tcf">
        <xs:annotation>
          <xs:documentation>AES Time-code character format.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="time">
        <xs:annotation>
          <xs:documentation>ISO 24-hour time format: HH:MM:SS.ss.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:complexType name="macro.availabilityPart">
    <xs:choice minOccurs="0" maxOccurs="unbounded">
      <xs:element ref="mei:accessRestrict"/>
      <xs:element ref="mei:distributor"/>
      <xs:element ref="mei:price"/>
      <xs:element ref="mei:sysReq"/>
      <xs:element ref="mei:useRestrict"/>
      <xs:group ref="mei:model.addressLike"/>
      <xs:group ref="mei:model.dateLike"/>
      <xs:group ref="mei:model.identifierLike"/>
    </xs:choice>
  </xs:complexType>
  <xs:group name="macro.bibldescPart">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:editionStmt"/>
      <xs:element minOccurs="0" ref="mei:pubStmt"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:physDesc"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:physLoc"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:seriesStmt"/>
    </xs:sequence>
  </xs:group>
  <xs:simpleType name="data.DURATION.cmn">
    <xs:restriction base="xs:token">
      <xs:enumeration value="long">
        <xs:annotation>
          <xs:documentation>Quadruple whole note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="breve">
        <xs:annotation>
          <xs:documentation>Double whole note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="1">
        <xs:annotation>
          <xs:documentation>Whole note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="2">
        <xs:annotation>
          <xs:documentation>Half note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="4">
        <xs:annotation>
          <xs:documentation>Quarter note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="8">
        <xs:annotation>
          <xs:documentation>8th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="16">
        <xs:annotation>
          <xs:documentation>16th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="32">
        <xs:annotation>
          <xs:documentation>32nd note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="64">
        <xs:annotation>
          <xs:documentation>64th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="128">
        <xs:annotation>
          <xs:documentation>128th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="256">
        <xs:annotation>
          <xs:documentation>256th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="512">
        <xs:annotation>
          <xs:documentation>512th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="1024">
        <xs:annotation>
          <xs:documentation>1024th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="2048">
        <xs:annotation>
          <xs:documentation>2048th note.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.DURATION.mensural">
    <xs:restriction base="xs:token">
      <xs:enumeration value="maxima">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="longa">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="brevis">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="semibrevis">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="minima">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="semiminima">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="fusa">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="semifusa">
        <xs:annotation>
          <xs:documentation/>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="data.ORNAM.cmn">
    <xs:restriction base="xs:token">
      <xs:pattern value="[A|a|b|I|i|K|k|M|m|N|n|S|s|T|t|O]|(A|a|S|s|K|k)?(T|t|M|m)(I|i|S|s)?"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:attributeGroup name="att.notationtype.attributes">
    <xs:attributeGroup ref="mei:att.notationtype.attribute.notationtype"/>
    <xs:attributeGroup ref="mei:att.notationtype.attribute.notationsubtype"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.notationtype.attribute.notationtype">
    <xs:attribute name="notationtype" type="mei:data.NOTATIONTYPE">
      <xs:annotation>
        <xs:documentation>Contains classification of the notation contained or described by the element bearing this attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.notationtype.attribute.notationsubtype">
    <xs:attribute name="notationsubtype" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Provides any sub-classification of the notation contained or described by the element, additional to that given by its notationtype attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accid.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accid.ges.attributes">
    <xs:attributeGroup ref="mei:att.accidental.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accid.log.attributes">
    <xs:attributeGroup ref="mei:att.accidental.attributes"/>
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.accid.log.attribute.func"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accid.log.attribute.func">
    <xs:attribute name="func">
      <xs:annotation>
        <xs:documentation>Records the function of an accidental.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="caution">
            <xs:annotation>
              <xs:documentation>Cautionary accidental.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="edit">
            <xs:annotation>
              <xs:documentation>Editorial accidental.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accid.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.enclosingchars.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.vo.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.accid.vis.mensural.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accidental.attributes">
    <xs:attributeGroup ref="mei:att.accidental.attribute.accid"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accidental.attribute.accid">
    <xs:attribute name="accid" type="mei:data.ACCIDENTAL.EXPLICIT">
      <xs:annotation>
        <xs:documentation>Captures a written accidental.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accidental.performed.attributes">
    <xs:attributeGroup ref="mei:att.accidental.performed.attribute.accid.ges"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.accidental.performed.attribute.accid.ges">
    <xs:attribute name="accid.ges" type="mei:data.ACCIDENTAL.IMPLICIT">
      <xs:annotation>
        <xs:documentation>Records the performed pitch inflection.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.annot.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.annot.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.annot.log.attributes">
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.layerident.attributes"/>
    <xs:attributeGroup ref="mei:att.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.artic.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.artic.ges.attributes">
    <xs:attributeGroup ref="mei:att.articulation.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.artic.log.attributes">
    <xs:attributeGroup ref="mei:att.articulation.attributes"/>
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.artic.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.enclosingchars.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.articulation.attributes">
    <xs:attributeGroup ref="mei:att.articulation.attribute.artic"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.articulation.attribute.artic">
    <xs:attribute name="artic">
      <xs:annotation>
        <xs:documentation>Encodes the written articulation(s). Articulations are normally encoded in order from the note head outward; that is, away from the stem. See additional notes at att.vis.note. Only articulations should be encoded in the artic attribute; for example, fingerings should be encoded using the &lt;fingering&gt; element.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.ARTICULATION"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.articulation.performed.attributes">
    <xs:attributeGroup ref="mei:att.articulation.performed.attribute.artic.ges"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.articulation.performed.attribute.artic.ges">
    <xs:attribute name="artic.ges">
      <xs:annotation>
        <xs:documentation>Records performed articulation that differs from the written value.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.ARTICULATION"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.augmentdots.attributes">
    <xs:attributeGroup ref="mei:att.augmentdots.attribute.dots"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.augmentdots.attribute.dots">
    <xs:attribute name="dots" type="mei:data.AUGMENTDOT">
      <xs:annotation>
        <xs:documentation>Records the number of augmentation dots required by a dotted duration.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.authorized.attributes">
    <xs:attributeGroup ref="mei:att.authorized.attribute.authority"/>
    <xs:attributeGroup ref="mei:att.authorized.attribute.authURI"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.authorized.attribute.authority">
    <xs:attribute name="authority" type="xs:string">
      <xs:annotation>
        <xs:documentation>A name or label associated with the controlled vocabulary from which the value is taken.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.authorized.attribute.authURI">
    <xs:attribute name="authURI" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>The web-accessible location of the controlled vocabulary from which the value is taken.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barLine.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barLine.ges.attributes">
    <xs:attributeGroup ref="mei:att.timestamp.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barLine.log.attributes">
    <xs:attributeGroup ref="mei:att.meterconformance.bar.attributes"/>
    <xs:attributeGroup ref="mei:att.barLine.log.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barLine.log.attribute.form">
    <xs:attribute name="form" type="mei:data.BARRENDITION">
      <xs:annotation>
        <xs:documentation>Records the appearance and usually the function of the bar line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barLine.vis.attributes">
    <xs:attributeGroup ref="mei:att.barplacement.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    <xs:attributeGroup ref="mei:att.width.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barplacement.attributes">
    <xs:attributeGroup ref="mei:att.barplacement.attribute.barplace"/>
    <xs:attributeGroup ref="mei:att.barplacement.attribute.taktplace"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barplacement.attribute.barplace">
    <xs:attribute name="barplace" type="mei:data.BARPLACE">
      <xs:annotation>
        <xs:documentation>Records the location of a bar line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.barplacement.attribute.taktplace">
    <xs:attribute name="taktplace" type="mei:data.STAFFLOC">
      <xs:annotation>
        <xs:documentation>If takt bar lines are to be used, then the taktplace attribute may be used to denote the staff location of the shortened bar line. The location may include staff lines, spaces, and the spaces directly above and below the staff. The value ranges between 0 (just below the staff) to 2 * number of staff lines (directly above the staff). For example, on a 5-line staff the lines would be numbered 1,3,5,7, and 9 while the spaces would be numbered 0,2,4,6,8,10. For example, a value of '9' puts the bar line through the top line of a 5-line staff.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beaming.vis.attributes">
    <xs:attributeGroup ref="mei:att.beaming.vis.attribute.beam.color"/>
    <xs:attributeGroup ref="mei:att.beaming.vis.attribute.beam.rend"/>
    <xs:attributeGroup ref="mei:att.beaming.vis.attribute.beam.slope"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beaming.vis.attribute.beam.color">
    <xs:attribute name="beam.color" type="mei:data.COLOR">
      <xs:annotation>
        <xs:documentation>Color of beams, including those associated with tuplets.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beaming.vis.attribute.beam.rend">
    <xs:attribute name="beam.rend">
      <xs:annotation>
        <xs:documentation>Encodes whether a beam is "feathered" and in which direction.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="acc">
            <xs:annotation>
              <xs:documentation>Beam lines grow farther apart from left to right.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="rit">
            <xs:annotation>
              <xs:documentation>Beam lines grow closer together from left to right.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="norm">
            <xs:annotation>
              <xs:documentation>Beam lines are equally-spaced over the entire length of the beam.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beaming.vis.attribute.beam.slope">
    <xs:attribute name="beam.slope" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Captures beam slope.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bibl.attributes">
    <xs:attributeGroup ref="mei:att.bibl.attribute.analog"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bibl.attribute.analog">
    <xs:attribute name="analog" type="xs:string">
      <xs:annotation>
        <xs:documentation>Contains a reference to a field or element in another descriptive encoding system to which this MEI element is comparable.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.calendared.attributes">
    <xs:attributeGroup ref="mei:att.calendared.attribute.calendar"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.calendared.attribute.calendar">
    <xs:attribute name="calendar" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Indicates the calendar system to which a date belongs, for example, Gregorian, Julian, Roman, Mosaic, Revolutionary, Islamic, etc.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.canonical.attributes">
    <xs:attributeGroup ref="mei:att.canonical.attribute.codedval"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.canonical.attribute.codedval">
    <xs:attribute name="codedval">
      <xs:annotation>
        <xs:documentation>a value that represents or identifies the element content. May serve as a primary key in a web-accessible database identified by the authURI attribute.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="xs:NMTOKEN"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.ges.attributes">
    <xs:attributeGroup ref="mei:att.articulation.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
    <xs:attributeGroup ref="mei:att.chord.ges.cmn.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.articulation.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.fermatapresent.attributes"/>
    <xs:attributeGroup ref="mei:att.syltext.attributes"/>
    <xs:attributeGroup ref="mei:att.slurpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.tiepresent.attributes"/>
    <xs:attributeGroup ref="mei:att.tupletpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.chord.log.cmn.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.enclosingchars.attributes"/>
    <xs:attributeGroup ref="mei:att.relativesize.attributes"/>
    <xs:attributeGroup ref="mei:att.stems.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.chord.vis.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.chord.vis.attribute.cluster"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.vis.attribute.cluster">
    <xs:attribute name="cluster" type="mei:data.CLUSTER">
      <xs:annotation>
        <xs:documentation>Indicates a single, alternative note head should be displayed instead of individual note heads. The highest and lowest notes of the chord usually indicate the upper and lower boundaries of the cluster note head.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.classcodeident.attributes">
    <xs:attributeGroup ref="mei:att.classcodeident.attribute.classcode"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.classcodeident.attribute.classcode">
    <xs:attribute name="classcode" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Contains a reference to the controlled vocabulary from which the term is drawn. The value must match the value of an ID attribute on a classCode element given elsewhere in the document.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.clef.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.clef.log.attributes">
    <xs:attributeGroup ref="mei:att.clefshape.attributes"/>
    <xs:attributeGroup ref="mei:att.lineloc.attributes"/>
    <xs:attributeGroup ref="mei:att.octave.attributes"/>
    <xs:attributeGroup ref="mei:att.octavedisplacement.attributes"/>
    <xs:attributeGroup ref="mei:att.clef.log.attribute.cautionary"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.clef.log.attribute.cautionary">
    <xs:attribute name="cautionary" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Records the function of the clef. A "cautionary" clef does not change the following pitches.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.clef.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.log.attributes">
    <xs:attributeGroup ref="mei:att.cleffing.log.attribute.clef.shape"/>
    <xs:attributeGroup ref="mei:att.cleffing.log.attribute.clef.line"/>
    <xs:attributeGroup ref="mei:att.cleffing.log.attribute.clef.dis"/>
    <xs:attributeGroup ref="mei:att.cleffing.log.attribute.clef.dis.place"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.log.attribute.clef.shape">
    <xs:attribute name="clef.shape" type="mei:data.CLEFSHAPE">
      <xs:annotation>
        <xs:documentation>Encodes a value for the clef symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.log.attribute.clef.line">
    <xs:attribute name="clef.line" type="mei:data.CLEFLINE">
      <xs:annotation>
        <xs:documentation>Contains a default value for the position of the clef. The value must be in the range between 1 and the number of lines on the staff. The numbering of lines starts with the lowest line of the staff.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.log.attribute.clef.dis">
    <xs:attribute name="clef.dis" type="mei:data.OCTAVE.DIS">
      <xs:annotation>
        <xs:documentation>Records the amount of octave displacement to be applied to the clef.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.log.attribute.clef.dis.place">
    <xs:attribute name="clef.dis.place" type="mei:data.PLACE">
      <xs:annotation>
        <xs:documentation>Records the direction of octave displacement to be applied to the clef.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.vis.attributes">
    <xs:attributeGroup ref="mei:att.cleffing.vis.attribute.clef.color"/>
    <xs:attributeGroup ref="mei:att.cleffing.vis.attribute.clef.visible"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.vis.attribute.clef.color">
    <xs:attribute name="clef.color" type="mei:data.COLOR">
      <xs:annotation>
        <xs:documentation>Describes the color of the clef.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cleffing.vis.attribute.clef.visible">
    <xs:attribute name="clef.visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines whether the clef is to be displayed.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.clefGrp.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.clefshape.attributes">
    <xs:attributeGroup ref="mei:att.clefshape.attribute.shape"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.clefshape.attribute.shape">
    <xs:attribute name="shape" type="mei:data.CLEFSHAPE">
      <xs:annotation>
        <xs:documentation>Describes a clef's shape.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.color.attributes">
    <xs:attributeGroup ref="mei:att.color.attribute.color"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.color.attribute.color">
    <xs:attribute name="color" type="mei:data.COLOR">
      <xs:annotation>
        <xs:documentation>Used to indicate visual appearance. Do not confuse this with the musical term 'color' as used in pre-CMN notation.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.coloration.attributes">
    <xs:attributeGroup ref="mei:att.coloration.attribute.colored"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.coloration.attribute.colored">
    <xs:attribute name="colored" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates this feature is 'colored'; that is, it is a participant in a change in rhythmic values. In mensural notation, coloration is indicated by colored notes (red, black, etc.) where void notes would otherwise occur. In CMN, coloration is indicated by an inverse color; that is, the note head is void when it would otherwise be filled and vice versa.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.attributes">
    <xs:attributeGroup ref="mei:att.commonPart.attributes"/>
    <xs:attributeGroup ref="mei:att.common.attribute.n"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.attribute.n">
    <xs:attribute name="n">
      <xs:annotation>
        <xs:documentation>Provides a number-like designation for an element.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.commonPart.attributes">
    <xs:attributeGroup ref="mei:att.id.attributes"/>
    <xs:attributeGroup ref="mei:att.commonPart.attribute.label"/>
    <xs:attributeGroup ref="mei:att.commonPart.attribute.xmlbase"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.commonPart.attribute.label">
    <xs:attribute name="label" type="xs:string">
      <xs:annotation>
        <xs:documentation>Provides a name or label for an element. The value may be any string.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.commonPart.attribute.xmlbase">
    <xs:attribute ref="xml:base"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.controlevent.attributes">
    <xs:attributeGroup ref="mei:att.plist.attributes"/>
    <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.layerident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.coordinated.attributes">
    <xs:attributeGroup ref="mei:att.coordinated.attribute.ulx"/>
    <xs:attributeGroup ref="mei:att.coordinated.attribute.uly"/>
    <xs:attributeGroup ref="mei:att.coordinated.attribute.lrx"/>
    <xs:attributeGroup ref="mei:att.coordinated.attribute.lry"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.coordinated.attribute.ulx">
    <xs:attribute name="ulx" type="xs:nonNegativeInteger">
      <xs:annotation>
        <xs:documentation>Indicates the upper-left corner x coordinate.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.coordinated.attribute.uly">
    <xs:attribute name="uly" type="xs:nonNegativeInteger">
      <xs:annotation>
        <xs:documentation>Indicates the upper-left corner y coordinate.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.coordinated.attribute.lrx">
    <xs:attribute name="lrx" type="xs:nonNegativeInteger">
      <xs:annotation>
        <xs:documentation>Indicates the lower-right corner x coordinate.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.coordinated.attribute.lry">
    <xs:attribute name="lry" type="xs:nonNegativeInteger">
      <xs:annotation>
        <xs:documentation>Indicates the lower-left corner x coordinate.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.curvature.attributes">
    <xs:attributeGroup ref="mei:att.curvature.attribute.bezier"/>
    <xs:attributeGroup ref="mei:att.curvature.attribute.bulge"/>
    <xs:attributeGroup ref="mei:att.curvature.attribute.curvedir"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.curvature.attribute.bezier">
    <xs:attribute name="bezier">
      <xs:annotation>
        <xs:documentation>Records the placement of Bezier control points as a series of pairs of space-separated values; e.g., 19 45 -32 118.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list>
              <xs:simpleType>
                <xs:union memberTypes="xs:decimal xs:decimal"/>
              </xs:simpleType>
            </xs:list>
          </xs:simpleType>
          <xs:minLength value="2"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.curvature.attribute.bulge">
    <xs:attribute name="bulge">
      <xs:annotation>
        <xs:documentation>Describes a curve as one or more pairs of values with respect to an imaginary line connecting the starting and ending points of the curve. The first value captures a distance to the left (positive value) or right (negative value) of the line, expressed in virtual units. The second value of each pair represents a point along the line, expressed as a percentage of the line's length. N.B. An MEI virtual unit (VU) is half the distance between adjacent staff lines.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list>
              <xs:simpleType>
                <xs:union memberTypes="xs:decimal mei:data.PERCENT"/>
              </xs:simpleType>
            </xs:list>
          </xs:simpleType>
          <xs:minLength value="2"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.curvature.attribute.curvedir">
    <xs:attribute name="curvedir">
      <xs:annotation>
        <xs:documentation>Describes a curve with a generic term indicating the direction of curvature.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="above">
            <xs:annotation>
              <xs:documentation>Upward curve.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="below">
            <xs:annotation>
              <xs:documentation>Downward curve.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="mixed">
            <xs:annotation>
              <xs:documentation>A "meandering" curve, both above and below the items it pertains to.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.curverend.attributes">
    <xs:attributeGroup ref="mei:att.curverend.attribute.lform"/>
    <xs:attributeGroup ref="mei:att.curverend.attribute.lwidth"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.curverend.attribute.lform">
    <xs:attribute name="lform" type="mei:data.LINEFORM">
      <xs:annotation>
        <xs:documentation>Describes the line style of a curve.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.curverend.attribute.lwidth">
    <xs:attribute name="lwidth" type="mei:data.LINEWIDTH">
      <xs:annotation>
        <xs:documentation>Width of a curved line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.custos.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.custos.log.attributes">
    <xs:attributeGroup ref="mei:att.pitched.attributes"/>
    <xs:attributeGroup ref="mei:att.custos.log.attribute.target"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.custos.log.attribute.target">
    <xs:attribute name="target" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Encodes the target note when its pitch differs from the pitch at which the custos appears.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.custos.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datable.attributes">
    <xs:attributeGroup ref="mei:att.datable.attribute.enddate"/>
    <xs:attributeGroup ref="mei:att.datable.attribute.isodate"/>
    <xs:attributeGroup ref="mei:att.datable.attribute.notafter"/>
    <xs:attributeGroup ref="mei:att.datable.attribute.notbefore"/>
    <xs:attributeGroup ref="mei:att.datable.attribute.startdate"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datable.attribute.enddate">
    <xs:attribute name="enddate" type="mei:data.ISODATE">
      <xs:annotation>
        <xs:documentation>Contains the end point of a date range in standard ISO form.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datable.attribute.isodate">
    <xs:attribute name="isodate" type="mei:data.ISODATE">
      <xs:annotation>
        <xs:documentation>Provides the value of a textual date in standard ISO form.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datable.attribute.notafter">
    <xs:attribute name="notafter" type="mei:data.ISODATE">
      <xs:annotation>
        <xs:documentation>Contains an upper boundary for an uncertain date in standard ISO form.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datable.attribute.notbefore">
    <xs:attribute name="notbefore" type="mei:data.ISODATE">
      <xs:annotation>
        <xs:documentation>Contains a lower boundary, in standard ISO form, for an uncertain date.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datable.attribute.startdate">
    <xs:attribute name="startdate" type="mei:data.ISODATE">
      <xs:annotation>
        <xs:documentation>Contains the starting point of a date range in standard ISO form.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datapointing.attributes">
    <xs:attributeGroup ref="mei:att.datapointing.attribute.data"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.datapointing.attribute.data">
    <xs:attribute name="data">
      <xs:annotation>
        <xs:documentation>Used to link metadata elements to one or more data-containing elements.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.declaring.attributes">
    <xs:attributeGroup ref="mei:att.declaring.attribute.decls"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.declaring.attribute.decls">
    <xs:attribute name="decls">
      <xs:annotation>
        <xs:documentation>Identifies one or more metadata elements within the header, which are understood to apply to the element bearing this attribute and its content.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dimensions.attributes">
    <xs:attributeGroup ref="mei:att.height.attributes"/>
    <xs:attributeGroup ref="mei:att.width.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dir.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dir.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dir.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dir.vis.attributes">
    <xs:attributeGroup ref="mei:att.extender.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.distances.attributes">
    <xs:attributeGroup ref="mei:att.distances.attribute.dynam.dist"/>
    <xs:attributeGroup ref="mei:att.distances.attribute.harm.dist"/>
    <xs:attributeGroup ref="mei:att.distances.attribute.text.dist"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.distances.attribute.dynam.dist">
    <xs:attribute name="dynam.dist" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records the default distance from the staff for dynamic marks.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.distances.attribute.harm.dist">
    <xs:attribute name="harm.dist" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records the default distance from the staff of harmonic indications, such as guitar chord grids or functional labels.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.distances.attribute.text.dist">
    <xs:attribute name="text.dist" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Determines how far from the staff to render text elements.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dot.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dot.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.dot.log.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dot.log.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Records the function of the dot.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="aug">
            <xs:annotation>
              <xs:documentation>Augmentation dot.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="div">
            <xs:annotation>
              <xs:documentation>Dot of division.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dot.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.vo.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.dot.vis.mensural.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.additive.attributes">
    <xs:attributeGroup ref="mei:att.duration.additive.attribute.dur"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.additive.attribute.dur">
    <xs:attribute name="dur">
      <xs:annotation>
        <xs:documentation>Records duration using optionally dotted, relative durational values provided by the data.DURATION datatype. When the duration is "irrational", as is sometimes the case with tuplets, multiple space-separated values that add up to the total duration may be used. When dotted values are present, the dots attribute must be ignored.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.DURATION.additive"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.default.attributes">
    <xs:attributeGroup ref="mei:att.duration.default.attribute.dur.default"/>
    <xs:attributeGroup ref="mei:att.duration.default.attribute.num.default"/>
    <xs:attributeGroup ref="mei:att.duration.default.attribute.numbase.default"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.default.attribute.dur.default">
    <xs:attribute name="dur.default" type="mei:data.DURATION">
      <xs:annotation>
        <xs:documentation>Contains a default duration in those situations when the first note, rest, chord, etc. in a measure does not have a duration specified.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.default.attribute.num.default">
    <xs:attribute name="num.default" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Along with numbase.default, describes the default duration as a ratio. num.default is the first value in the ratio.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.default.attribute.numbase.default">
    <xs:attribute name="numbase.default" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Along with num.default, describes the default duration as a ratio. numbase.default is the second value in the ratio.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.musical.attributes">
    <xs:attributeGroup ref="mei:att.duration.musical.attribute.dur"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.musical.attribute.dur">
    <xs:attribute name="dur" type="mei:data.DURATION">
      <xs:annotation>
        <xs:documentation>Records the duration of a feature using the relative durational values provided by the data.DURATION datatype.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.performed.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attribute.dur.ges"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.performed.attribute.dur.ges">
    <xs:attribute name="dur.ges" type="mei:data.DURATION.gestural">
      <xs:annotation>
        <xs:documentation>Records performed duration information that differs from the written duration. Its value may be expressed in several forms; that is, ppq (MIDI clicks and MusicXML 'divisions'), Humdrum **recip values, beats, seconds, or mensural duration values.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.ratio.attributes">
    <xs:attributeGroup ref="mei:att.duration.ratio.attribute.num"/>
    <xs:attributeGroup ref="mei:att.duration.ratio.attribute.numbase"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.ratio.attribute.num">
    <xs:attribute name="num" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Along with numbase, describes duration as a ratio. num is the first value in the ratio, while numbase is the second.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.duration.ratio.attribute.numbase">
    <xs:attribute name="numbase" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Along with num, describes duration as a ratio. num is the first value in the ratio, while numbase is the second.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dynam.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dynam.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.midivalue.attributes"/>
    <xs:attributeGroup ref="mei:att.midivalue2.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dynam.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dynam.vis.attributes">
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.enclosingchars.attributes">
    <xs:attributeGroup ref="mei:att.enclosingchars.attribute.enclose"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.enclosingchars.attribute.enclose">
    <xs:attribute name="enclose" type="mei:data.ENCLOSURE">
      <xs:annotation>
        <xs:documentation>Records the characters often used to mark accidentals, articulations, and sometimes notes as having a cautionary or editorial function. For an example of cautionary accidentals enclosed in parentheses, see Read, p. 131, ex. 9-14.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ending.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.endings.attributes">
    <xs:attributeGroup ref="mei:att.endings.attribute.ending.rend"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.endings.attribute.ending.rend">
    <xs:attribute name="ending.rend">
      <xs:annotation>
        <xs:documentation>Describes where ending marks should be displayed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="top">
            <xs:annotation>
              <xs:documentation>Ending rendered only above top staff.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="barred">
            <xs:annotation>
              <xs:documentation>Ending rendered above staves that have bar lines drawn across them.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="grouped">
            <xs:annotation>
              <xs:documentation>Endings rendered above staff groups.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.event.attributes">
    <xs:attributeGroup ref="mei:att.timestamp.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.layerident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.extender.attributes">
    <xs:attributeGroup ref="mei:att.linerend.attributes"/>
    <xs:attributeGroup ref="mei:att.extender.attribute.extender"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.extender.attribute.extender">
    <xs:attribute name="extender" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates the presence of an extension symbol, typically a line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.f.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.f.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.f.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.f.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.extender.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermatapresent.attributes">
    <xs:attributeGroup ref="mei:att.fermatapresent.attribute.fermata"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermatapresent.attribute.fermata">
    <xs:attribute name="fermata" type="mei:data.PLACE">
      <xs:annotation>
        <xs:documentation>Indicates the attachment of a fermata to this element. If visual information about the fermata needs to be recorded, then a &lt;fermata&gt; element should be employed instead.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.filing.attributes">
    <xs:attributeGroup ref="mei:att.filing.attribute.nonfiling"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.filing.attribute.nonfiling">
    <xs:attribute name="nonfiling" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Holds the number of initial characters (such as those constituing an article or preposition) that should not be used for sorting a title or name.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grpSym.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grpSym.log.attributes">
    <xs:attributeGroup ref="mei:att.staffgroupingsym.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.grpSym.log.attribute.level"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grpSym.log.attribute.level">
    <xs:attribute name="level" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Indicates the nesting level of staff grouping symbols.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grpSym.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.handident.attributes">
    <xs:attributeGroup ref="mei:att.handident.attribute.hand"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.handident.attribute.hand">
    <xs:attribute name="hand" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Signifies the hand responsible for an action. The value must be the ID of a &lt;hand&gt; element declared in the header.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.height.attributes">
    <xs:attributeGroup ref="mei:att.height.attribute.height"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.height.attribute.height">
    <xs:attribute name="height" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Measurement of the vertical dimension of an entity.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.horizontalalign.attributes">
    <xs:attributeGroup ref="mei:att.horizontalalign.attribute.halign"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.horizontalalign.attribute.halign">
    <xs:attribute name="halign" type="mei:data.HORIZONTALALIGNMENT">
      <xs:annotation>
        <xs:documentation>Records horizontal alignment.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.id.attributes">
    <xs:attributeGroup ref="mei:att.id.attribute.xmlid"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.id.attribute.xmlid">
    <xs:attribute ref="xml:id"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.instrumentident.attributes">
    <xs:attributeGroup ref="mei:att.instrumentident.attribute.instr"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.instrumentident.attribute.instr">
    <xs:attribute name="instr" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Provides a way of pointing to a MIDI instrument definition. It must contain the ID of an &lt;instrDef&gt; element elsewhere in the document.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.internetmedia.attributes">
    <xs:attributeGroup ref="mei:att.internetmedia.attribute.mimetype"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.internetmedia.attribute.mimetype">
    <xs:attribute name="mimetype" type="xs:string">
      <xs:annotation>
        <xs:documentation>Specifies the applicable MIME (multimedia internet mail extension) type. The value should be a valid MIME media type defined by the Internet Engineering Task Force in RFC 2046.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.joined.attributes">
    <xs:attributeGroup ref="mei:att.joined.attribute.join"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.joined.attribute.join">
    <xs:attribute name="join">
      <xs:annotation>
        <xs:documentation>Used for linking visually separate entities that form a single logical entity, for example, multiple slurs broken across a system break that form a single musical phrase. Also used to indicate a measure which metrically completes the current one. Record the identifiers of the separately encoded components, excluding the one carrying the attribute.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keyAccid.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keyAccid.log.attributes">
    <xs:attributeGroup ref="mei:att.accidental.attributes"/>
    <xs:attributeGroup ref="mei:att.pitched.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keyAccid.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.enclosingchars.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySig.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySig.log.attributes">
    <xs:attributeGroup ref="mei:att.accidental.attributes"/>
    <xs:attributeGroup ref="mei:att.pitch.attributes"/>
    <xs:attributeGroup ref="mei:att.keySig.log.attribute.sig"/>
    <xs:attributeGroup ref="mei:att.keySig.log.attribute.sig.mixed"/>
    <xs:attributeGroup ref="mei:att.keySig.log.attribute.mode"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySig.log.attribute.sig">
    <xs:attribute name="sig" type="mei:data.KEYSIGNATURE">
      <xs:annotation>
        <xs:documentation>Indicates where the key lies in the circle of fifths.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySig.log.attribute.sig.mixed">
    <xs:attribute name="sig.mixed">
      <xs:annotation>
        <xs:documentation>Mixed key signatures, e.g. those consisting of a mixture of flats and sharps (Read, p. 143, ex. 9-39), and key signatures with unorthodox placement of the accidentals (Read, p. 141) must be indicated by setting the key.sig attribute to 'mixed' and providing explicit key signature information in the key.sig.mixed attribute or in the &lt;keySig&gt; element. It is intended that key.sig.mixed contain a series of tokens with each token containing pitch name, accidental, and octave, such as 'a4 c5s e5f' that indicate what key accidentals should be rendered and where they should be placed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.KEYSIGTOKEN"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySig.log.attribute.mode">
    <xs:attribute name="mode" type="mei:data.MODE">
      <xs:annotation>
        <xs:documentation>Indicates major, minor, or other tonality.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySig.vis.attributes">
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.keySig.vis.attribute.sig.showchange"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySig.vis.attribute.sig.showchange">
    <xs:attribute name="sig.showchange" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines whether cautionary accidentals should be displayed at a key change.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.log.attributes">
    <xs:attributeGroup ref="mei:att.keySigDefault.log.attribute.key.accid"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.log.attribute.key.mode"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.log.attribute.key.pname"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.log.attribute.key.sig"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.log.attribute.key.sig.mixed"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.log.attribute.key.accid">
    <xs:attribute name="key.accid" type="mei:data.ACCIDENTAL.IMPLICIT">
      <xs:annotation>
        <xs:documentation>Contains an accidental for the tonic key, if one is required, e.g., if key.pname equals 'c' and key.accid equals 's', then a tonic of C# is indicated.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.log.attribute.key.mode">
    <xs:attribute name="key.mode" type="mei:data.MODE">
      <xs:annotation>
        <xs:documentation>Indicates major, minor, or other tonality.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.log.attribute.key.pname">
    <xs:attribute name="key.pname" type="mei:data.PITCHNAME">
      <xs:annotation>
        <xs:documentation>Holds the pitch name of the tonic key, e.g. 'c' for the key of C.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.log.attribute.key.sig">
    <xs:attribute name="key.sig" type="mei:data.KEYSIGNATURE">
      <xs:annotation>
        <xs:documentation>Indicates where the key lies in the circle of fifths.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.log.attribute.key.sig.mixed">
    <xs:attribute name="key.sig.mixed">
      <xs:annotation>
        <xs:documentation>Mixed key signatures, e.g. those consisting of a mixture of flats and sharps (Read, p. 143, ex. 9-39), and key signatures with unorthodox placement of the accidentals (Read, p. 141) must be indicated by setting the key.sig attribute to 'mixed' and providing explicit key signature information in the key.sig.mixed attribute or in the &lt;keySig&gt; element. It is intended that key.sig.mixed contain a series of tokens with each token containing pitch name, accidental, and octave, such as 'a4 c5s e5f' that indicate what key accidentals should be rendered and where they should be placed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.KEYSIGTOKEN"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.vis.attributes">
    <xs:attributeGroup ref="mei:att.keySigDefault.vis.attribute.key.sig.show"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.vis.attribute.key.sig.showchange"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.vis.attribute.key.sig.show">
    <xs:attribute name="key.sig.show" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether the key signature should be displayed.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.keySigDefault.vis.attribute.key.sig.showchange">
    <xs:attribute name="key.sig.showchange" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines whether cautionary accidentals should be displayed at a key change.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.labels.addl.attributes">
    <xs:attributeGroup ref="mei:att.labels.addl.attribute.label.abbr"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.labels.addl.attribute.label.abbr">
    <xs:attribute name="label.abbr" type="xs:string">
      <xs:annotation>
        <xs:documentation>Provides a label for a group of staves on pages after the first page. Usually, this label takes an abbreviated form.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lang.attributes">
    <xs:attributeGroup ref="mei:att.lang.attribute.xmllang"/>
    <xs:attributeGroup ref="mei:att.lang.attribute.translit"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lang.attribute.xmllang">
    <xs:attribute ref="xml:lang"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lang.attribute.translit">
    <xs:attribute name="translit" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Specifies the transliteration technique used.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layer.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layer.log.attributes">
    <xs:attributeGroup ref="mei:att.meterconformance.attributes"/>
    <xs:attributeGroup ref="mei:att.layer.log.attribute.def"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layer.log.attribute.def">
    <xs:attribute name="def" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Provides a mechanism for linking the layer to a layerDef element.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layer.vis.attributes">
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layerDef.ges.attributes">
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layerDef.log.attributes">
    <xs:attributeGroup ref="mei:att.duration.default.attributes"/>
    <xs:attributeGroup ref="mei:att.layerDef.log.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.octavedefault.attributes"/>
    <xs:attributeGroup ref="mei:att.transposition.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layerDef.vis.attributes">
    <xs:attributeGroup ref="mei:att.labels.addl.attributes"/>
    <xs:attributeGroup ref="mei:att.beaming.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.textstyle.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layerident.attributes">
    <xs:attributeGroup ref="mei:att.layerident.attribute.layer"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layerident.attribute.layer">
    <xs:attribute name="layer">
      <xs:annotation>
        <xs:documentation>Identifies the layer to which a feature applies.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="xs:positiveInteger"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    <xs:attributeGroup ref="mei:att.line.vis.attribute.form"/>
    <xs:attributeGroup ref="mei:att.line.vis.attribute.width"/>
    <xs:attributeGroup ref="mei:att.line.vis.attribute.endsym"/>
    <xs:attributeGroup ref="mei:att.line.vis.attribute.endsymsize"/>
    <xs:attributeGroup ref="mei:att.line.vis.attribute.startsym"/>
    <xs:attributeGroup ref="mei:att.line.vis.attribute.startsymsize"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.vis.attribute.form">
    <xs:attribute name="form" type="mei:data.LINEFORM">
      <xs:annotation>
        <xs:documentation>Visual form of the line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.vis.attribute.width">
    <xs:attribute name="width" type="mei:data.LINEWIDTH">
      <xs:annotation>
        <xs:documentation>Width of the line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.vis.attribute.endsym">
    <xs:attribute name="endsym" type="mei:data.LINESTARTENDSYMBOL">
      <xs:annotation>
        <xs:documentation>Symbol rendered at end of line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.vis.attribute.endsymsize">
    <xs:attribute name="endsymsize" type="mei:data.LINESTARTENDSYMBOLSIZE">
      <xs:annotation>
        <xs:documentation>Holds the relative size of the line-end symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.vis.attribute.startsym">
    <xs:attribute name="startsym" type="mei:data.LINESTARTENDSYMBOL">
      <xs:annotation>
        <xs:documentation>Symbol rendered at start of line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.line.vis.attribute.startsymsize">
    <xs:attribute name="startsymsize" type="mei:data.LINESTARTENDSYMBOLSIZE">
      <xs:annotation>
        <xs:documentation>Holds the relative size of the line-start symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lineloc.attributes">
    <xs:attributeGroup ref="mei:att.lineloc.attribute.line"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lineloc.attribute.line">
    <xs:attribute name="line" type="mei:data.CLEFLINE">
      <xs:annotation>
        <xs:documentation>Indicates the line upon which a feature stands. The value must be in the range between 1 and the number of lines on the staff. The numbering of lines starts with the lowest line of the staff.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.attributes">
    <xs:attributeGroup ref="mei:att.linerend.base.attributes"/>
    <xs:attributeGroup ref="mei:att.linerend.attribute.lendsym"/>
    <xs:attributeGroup ref="mei:att.linerend.attribute.lendsymsize"/>
    <xs:attributeGroup ref="mei:att.linerend.attribute.lstartsym"/>
    <xs:attributeGroup ref="mei:att.linerend.attribute.lstartsymsize"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.attribute.lendsym">
    <xs:attribute name="lendsym" type="mei:data.LINESTARTENDSYMBOL">
      <xs:annotation>
        <xs:documentation>Symbol rendered at end of line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.attribute.lendsymsize">
    <xs:attribute name="lendsymsize" type="mei:data.LINESTARTENDSYMBOLSIZE">
      <xs:annotation>
        <xs:documentation>Holds the relative size of the line-end symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.attribute.lstartsym">
    <xs:attribute name="lstartsym" type="mei:data.LINESTARTENDSYMBOL">
      <xs:annotation>
        <xs:documentation>Symbol rendered at start of line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.attribute.lstartsymsize">
    <xs:attribute name="lstartsymsize" type="mei:data.LINESTARTENDSYMBOLSIZE">
      <xs:annotation>
        <xs:documentation>Holds the relative size of the line-start symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.base.attributes">
    <xs:attributeGroup ref="mei:att.linerend.base.attribute.lform"/>
    <xs:attributeGroup ref="mei:att.linerend.base.attribute.lwidth"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.base.attribute.lform">
    <xs:attribute name="lform" type="mei:data.LINEFORM">
      <xs:annotation>
        <xs:documentation>Describes the line style of a line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.linerend.base.attribute.lwidth">
    <xs:attribute name="lwidth" type="mei:data.LINEWIDTH">
      <xs:annotation>
        <xs:documentation>Width of a line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyricstyle.attributes">
    <xs:attributeGroup ref="mei:att.lyricstyle.attribute.lyric.align"/>
    <xs:attributeGroup ref="mei:att.lyricstyle.attribute.lyric.fam"/>
    <xs:attributeGroup ref="mei:att.lyricstyle.attribute.lyric.name"/>
    <xs:attributeGroup ref="mei:att.lyricstyle.attribute.lyric.size"/>
    <xs:attributeGroup ref="mei:att.lyricstyle.attribute.lyric.style"/>
    <xs:attributeGroup ref="mei:att.lyricstyle.attribute.lyric.weight"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyricstyle.attribute.lyric.align">
    <xs:attribute name="lyric.align" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Describes the alignment of lyric syllables associated with a note or chord.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyricstyle.attribute.lyric.fam">
    <xs:attribute name="lyric.fam" type="mei:data.FONTFAMILY">
      <xs:annotation>
        <xs:documentation>Sets the font family default value for lyrics.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyricstyle.attribute.lyric.name">
    <xs:attribute name="lyric.name" type="mei:data.FONTNAME">
      <xs:annotation>
        <xs:documentation>Sets the font name default value for lyrics.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyricstyle.attribute.lyric.size">
    <xs:attribute name="lyric.size" type="mei:data.FONTSIZE">
      <xs:annotation>
        <xs:documentation>Sets the default font size value for lyrics.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyricstyle.attribute.lyric.style">
    <xs:attribute name="lyric.style" type="mei:data.FONTSTYLE">
      <xs:annotation>
        <xs:documentation>Sets the default font style value for lyrics.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyricstyle.attribute.lyric.weight">
    <xs:attribute name="lyric.weight" type="mei:data.FONTWEIGHT">
      <xs:annotation>
        <xs:documentation>Sets the default font weight value for lyrics.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measure.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
    <xs:attributeGroup ref="mei:att.joined.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measure.ges.attributes">
    <xs:attributeGroup ref="mei:att.timestamp.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measure.log.attributes">
    <xs:attributeGroup ref="mei:att.meterconformance.bar.attributes"/>
    <xs:attributeGroup ref="mei:att.measure.log.attribute.left"/>
    <xs:attributeGroup ref="mei:att.measure.log.attribute.right"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measure.log.attribute.left">
    <xs:attribute name="left" type="mei:data.BARRENDITION">
      <xs:annotation>
        <xs:documentation>Indicates the visual rendition of the left bar line. It is present here only for facilitation of translation from legacy encodings which use it. Usually, it can be safely ignored.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measure.log.attribute.right">
    <xs:attribute name="right" type="mei:data.BARRENDITION">
      <xs:annotation>
        <xs:documentation>Indicates the function of the right bar line and is structurally important.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measurement.attributes">
    <xs:attributeGroup ref="mei:att.measurement.attribute.unit"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measurement.attribute.unit">
    <xs:attribute name="unit">
      <xs:annotation>
        <xs:documentation>Indicates the unit of measurement.
Suggested values include: 1] byte; 2] char; 3] cm; 4] in; 5] issue; 6] mm; 7] page; 8] pc; 9] pt; 10] px; 11] record; 12] vol; 13] vu</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:union memberTypes="xs:NMTOKEN">
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="byte">
                <xs:annotation>
                  <xs:documentation>Byte.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="char">
                <xs:annotation>
                  <xs:documentation>Character.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="cm">
                <xs:annotation>
                  <xs:documentation>Centimeter.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="in">
                <xs:annotation>
                  <xs:documentation>Inch.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="issue">
                <xs:annotation>
                  <xs:documentation>Serial issue.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="mm">
                <xs:annotation>
                  <xs:documentation>Millimeter.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="page">
                <xs:annotation>
                  <xs:documentation>Page.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="pc">
                <xs:annotation>
                  <xs:documentation>Pica.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="pt">
                <xs:annotation>
                  <xs:documentation>Point.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="px">
                <xs:annotation>
                  <xs:documentation>Pixel.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="record">
                <xs:annotation>
                  <xs:documentation>Record.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="vol">
                <xs:annotation>
                  <xs:documentation>Serial volume.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
          <xs:simpleType>
            <xs:restriction base="xs:token">
              <xs:enumeration value="vu">
                <xs:annotation>
                  <xs:documentation>MEI virtual unit.</xs:documentation>
                </xs:annotation>
              </xs:enumeration>
            </xs:restriction>
          </xs:simpleType>
        </xs:union>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measurenumbers.attributes">
    <xs:attributeGroup ref="mei:att.measurenumbers.attribute.mnum.visible"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measurenumbers.attribute.mnum.visible">
    <xs:attribute name="mnum.visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether measure numbers should be displayed.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mediabounds.attributes">
    <xs:attributeGroup ref="mei:att.mediabounds.attribute.begin"/>
    <xs:attributeGroup ref="mei:att.mediabounds.attribute.end"/>
    <xs:attributeGroup ref="mei:att.mediabounds.attribute.betype"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mediabounds.attribute.begin">
    <xs:attribute name="begin">
      <xs:annotation>
        <xs:documentation>Specifies a point where the relevant content begins. A numerical value must be less and a time value must be earlier than that given by the end attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mediabounds.attribute.end">
    <xs:attribute name="end">
      <xs:annotation>
        <xs:documentation>Specifies a point where the relevant content ends. If not specified, the end of the content is assumed to be the end point. A numerical value must be greater and a time value must be later than that given by the begin attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mediabounds.attribute.betype">
    <xs:attribute name="betype" type="mei:data.BETYPE">
      <xs:annotation>
        <xs:documentation>Type of values used in the begin/end attributes. The begin and end attributes can only be interpreted meaningfully in conjunction with this attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.medium.attributes">
    <xs:attributeGroup ref="mei:att.medium.attribute.medium"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.medium.attribute.medium">
    <xs:attribute name="medium" type="xs:string">
      <xs:annotation>
        <xs:documentation>Describes the writing medium.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meiversion.attributes">
    <xs:attributeGroup ref="mei:att.meiversion.attribute.meiversion"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meiversion.attribute.meiversion">
    <xs:attribute name="meiversion" default="3.0.0">
      <xs:annotation>
        <xs:documentation>Specifies a generic MEI version label.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="3.0.0">
            <xs:annotation>
              <xs:documentation>This version of MEI.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensur.log.attributes">
    <xs:attributeGroup ref="mei:att.duration.ratio.attributes"/>
    <xs:attributeGroup ref="mei:att.slashcount.attributes"/>
    <xs:attributeGroup ref="mei:att.mensural.shared.attributes"/>
    <xs:attributeGroup ref="mei:att.mensur.log.attribute.dot"/>
    <xs:attributeGroup ref="mei:att.mensur.log.attribute.sign"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensur.log.attribute.dot">
    <xs:attribute name="dot" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Specifies whether a dot is to be added to the base symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensur.log.attribute.sign">
    <xs:attribute name="sign" type="mei:data.MENSURATIONSIGN">
      <xs:annotation>
        <xs:documentation>The base symbol in the mensuration sign/time signature of mensural notation.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterconformance.attributes">
    <xs:attributeGroup ref="mei:att.meterconformance.attribute.metcon"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterconformance.attribute.metcon">
    <xs:attribute name="metcon">
      <xs:annotation>
        <xs:documentation>Indicates the relationship between the content of a staff or layer and the prevailing meter.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="c">
            <xs:annotation>
              <xs:documentation>Complete; i.e., conformant with the prevailing meter.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="i">
            <xs:annotation>
              <xs:documentation>Incomplete; i.e., not enough beats.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="o">
            <xs:annotation>
              <xs:documentation>Overfull; i.e., too many beats.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterconformance.bar.attributes">
    <xs:attributeGroup ref="mei:att.meterconformance.bar.attribute.metcon"/>
    <xs:attributeGroup ref="mei:att.meterconformance.bar.attribute.control"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterconformance.bar.attribute.metcon">
    <xs:attribute name="metcon" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates the relationship between the content of a measure and the prevailing meter.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterconformance.bar.attribute.control">
    <xs:attribute name="control" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether or not a bar line is "controlling"; that is, if it indicates a point of alignment across all the parts. Bar lines within a score are usually controlling; that is, they "line up". Bar lines within parts may or may not be controlling. When applied to &lt;measure&gt;, this attribute indicates the nature of the right barline but not the left.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSig.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSig.log.attributes">
    <xs:attributeGroup ref="mei:att.meterSig.log.attribute.count"/>
    <xs:attributeGroup ref="mei:att.meterSig.log.attribute.sym"/>
    <xs:attributeGroup ref="mei:att.meterSig.log.attribute.unit"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSig.log.attribute.count">
    <xs:attribute name="count">
      <xs:annotation>
        <xs:documentation>Captures the number of beats in a measure, that is, the top number of the meter signature. It must contain a decimal number or an additive expression that evaluates to a decimal number, such as 2+3.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:pattern value="\d+(\.\d+)?(\s*\+\s*\d+(\.\d+)?)*"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSig.log.attribute.sym">
    <xs:attribute name="sym" type="mei:data.METERSIGN">
      <xs:annotation>
        <xs:documentation>Indicates the use of a meter symbol instead of a numeric meter signature, that is, 'C' for common time or 'C' with a slash for cut time.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSig.log.attribute.unit">
    <xs:attribute name="unit" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Contains the number indicating the beat unit, that is, the bottom number of the meter signature.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSig.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.meterSig.vis.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSig.vis.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Contains an indication of how the meter signature should be rendered.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="num">
            <xs:annotation>
              <xs:documentation>Show only the number of beats.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="denomsym">
            <xs:annotation>
              <xs:documentation>The lower number in the meter signature is replaced by a note symbol.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="norm">
            <xs:annotation>
              <xs:documentation>Meter signature rendered using traditional numeric values.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="invis">
            <xs:annotation>
              <xs:documentation>Meter signature not rendered.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigDefault.log.attributes">
    <xs:attributeGroup ref="mei:att.meterSigDefault.log.attribute.meter.count"/>
    <xs:attributeGroup ref="mei:att.meterSigDefault.log.attribute.meter.unit"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigDefault.log.attribute.meter.count">
    <xs:attribute name="meter.count">
      <xs:annotation>
        <xs:documentation>Captures the number of beats in a measure, that is, the top number of the meter signature. It must contain a decimal number or an additive expression that evaluates to a decimal number, such as 2+3.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:pattern value="\d+(\.\d+)?(\s*\+\s*\d+(\.\d+)?)*"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigDefault.log.attribute.meter.unit">
    <xs:attribute name="meter.unit" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Contains the number indicating the beat unit, that is, the bottom number of the meter signature.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigDefault.vis.attributes">
    <xs:attributeGroup ref="mei:att.meterSigDefault.vis.attribute.meter.rend"/>
    <xs:attributeGroup ref="mei:att.meterSigDefault.vis.attribute.meter.showchange"/>
    <xs:attributeGroup ref="mei:att.meterSigDefault.vis.attribute.meter.sym"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigDefault.vis.attribute.meter.rend">
    <xs:attribute name="meter.rend">
      <xs:annotation>
        <xs:documentation>Contains an indication of how the meter signature should be rendered.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="num">
            <xs:annotation>
              <xs:documentation>Show only the number of beats.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="denomsym">
            <xs:annotation>
              <xs:documentation>The lower number in the meter signature is replaced by a note symbol.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="norm">
            <xs:annotation>
              <xs:documentation>Meter signature rendered using traditional numeric values.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="invis">
            <xs:annotation>
              <xs:documentation>Meter signature not rendered.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigDefault.vis.attribute.meter.showchange">
    <xs:attribute name="meter.showchange" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines whether a new meter signature should be displayed when the meter signature changes.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigDefault.vis.attribute.meter.sym">
    <xs:attribute name="meter.sym" type="mei:data.METERSIGN">
      <xs:annotation>
        <xs:documentation>Indicates the use of a meter symbol instead of a numeric meter signature, that is, 'C' for common time or 'C' with a slash for cut time.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mmtempo.attributes">
    <xs:attributeGroup ref="mei:att.mmtempo.attribute.mm"/>
    <xs:attributeGroup ref="mei:att.mmtempo.attribute.mm.unit"/>
    <xs:attributeGroup ref="mei:att.mmtempo.attribute.mm.dots"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mmtempo.attribute.mm">
    <xs:attribute name="mm" type="mei:data.TEMPOVALUE">
      <xs:annotation>
        <xs:documentation>Used to describe tempo in terms of beats (often the meter signature denominator) per minute, ala M.M. (Maezel's Metronome). Do not confuse this attribute with midi.bpm or midi.mspb. In MIDI, a beat is always defined as a quarter note, *not the numerator of the time signature or the metronomic indication*.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mmtempo.attribute.mm.unit">
    <xs:attribute name="mm.unit" type="mei:data.DURATION">
      <xs:annotation>
        <xs:documentation>Captures the metronomic unit.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mmtempo.attribute.mm.dots">
    <xs:attribute name="mm.dots" type="mei:data.AUGMENTDOT">
      <xs:annotation>
        <xs:documentation>Records the number of augmentation dots required by a dotted metronome unit.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multinummeasures.attributes">
    <xs:attributeGroup ref="mei:att.multinummeasures.attribute.multi.number"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multinummeasures.attribute.multi.number">
    <xs:attribute name="multi.number" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether programmatically calculated counts of multiple measures of rest (mRest) and whole measure repeats (mRpt) in parts should be rendered.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.name.attributes">
    <xs:attributeGroup ref="mei:att.authorized.attributes"/>
    <xs:attributeGroup ref="mei:att.canonical.attributes"/>
    <xs:attributeGroup ref="mei:att.datable.attributes"/>
    <xs:attributeGroup ref="mei:att.filing.attributes"/>
    <xs:attributeGroup ref="mei:att.name.attribute.nymref"/>
    <xs:attributeGroup ref="mei:att.name.attribute.role"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.name.attribute.nymref">
    <xs:attribute name="nymref" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Used to record a pointer to the regularized form of the name elsewhere in the document.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.name.attribute.role">
    <xs:attribute name="role">
      <xs:annotation>
        <xs:documentation>Used to specify further information about the entity referenced by this name, for example, the occupation of a person or the status of a place. Use a standard value whenever possible.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.notationstyle.attributes">
    <xs:attributeGroup ref="mei:att.notationstyle.attribute.music.name"/>
    <xs:attributeGroup ref="mei:att.notationstyle.attribute.music.size"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.notationstyle.attribute.music.name">
    <xs:attribute name="music.name" type="mei:data.MUSICFONT">
      <xs:annotation>
        <xs:documentation>Sets the default music font name.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.notationstyle.attribute.music.size">
    <xs:attribute name="music.size" type="mei:data.FONTSIZE">
      <xs:annotation>
        <xs:documentation>Sets the default music font size.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
    <xs:attributeGroup ref="mei:att.harmonicfunction.attributes"/>
    <xs:attributeGroup ref="mei:att.intervalmelodic.attributes"/>
    <xs:attributeGroup ref="mei:att.melodicfunction.attributes"/>
    <xs:attributeGroup ref="mei:att.pitchclass.attributes"/>
    <xs:attributeGroup ref="mei:att.solfa.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.attributes">
    <xs:attributeGroup ref="mei:att.accidental.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.articulation.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
    <xs:attributeGroup ref="mei:att.midivelocity.attributes"/>
    <xs:attributeGroup ref="mei:att.note.ges.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.note.ges.mensural.attributes"/>
    <xs:attributeGroup ref="mei:att.note.ges.tablature.attributes"/>
    <xs:attributeGroup ref="mei:att.note.ges.attribute.oct.ges"/>
    <xs:attributeGroup ref="mei:att.note.ges.attribute.pname.ges"/>
    <xs:attributeGroup ref="mei:att.note.ges.attribute.pnum"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.attribute.oct.ges">
    <xs:attribute name="oct.ges" type="mei:data.OCTAVE">
      <xs:annotation>
        <xs:documentation>Records performed octave information that differs from the written value.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.attribute.pname.ges">
    <xs:attribute name="pname.ges" type="mei:data.PITCHNAME.GES">
      <xs:annotation>
        <xs:documentation>Contains a performed pitch name that differs from the written value.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.attribute.pnum">
    <xs:attribute name="pnum" type="mei:data.PITCHNUMBER">
      <xs:annotation>
        <xs:documentation>Holds a pitch-to-number mapping, a base-40 or MIDI note number, for example.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.accidental.attributes"/>
    <xs:attributeGroup ref="mei:att.articulation.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.fermatapresent.attributes"/>
    <xs:attributeGroup ref="mei:att.pitched.attributes"/>
    <xs:attributeGroup ref="mei:att.syltext.attributes"/>
    <xs:attributeGroup ref="mei:att.slurpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.tiepresent.attributes"/>
    <xs:attributeGroup ref="mei:att.tupletpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.note.log.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.note.log.mensural.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.coloration.attributes"/>
    <xs:attributeGroup ref="mei:att.enclosingchars.attributes"/>
    <xs:attributeGroup ref="mei:att.noteheads.attributes"/>
    <xs:attributeGroup ref="mei:att.relativesize.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.stems.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.note.vis.cmn.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attributes">
    <xs:attributeGroup ref="mei:att.noteheads.attribute.head.color"/>
    <xs:attributeGroup ref="mei:att.noteheads.attribute.head.fill"/>
    <xs:attributeGroup ref="mei:att.noteheads.attribute.head.fillcolor"/>
    <xs:attributeGroup ref="mei:att.noteheads.attribute.head.mod"/>
    <xs:attributeGroup ref="mei:att.noteheads.attribute.head.rotation"/>
    <xs:attributeGroup ref="mei:att.noteheads.attribute.head.shape"/>
    <xs:attributeGroup ref="mei:att.noteheads.attribute.head.visible"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attribute.head.color">
    <xs:attribute name="head.color" type="mei:data.COLOR">
      <xs:annotation>
        <xs:documentation>Captures the overall color of a notehead.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attribute.head.fill">
    <xs:attribute name="head.fill" type="mei:data.FILL">
      <xs:annotation>
        <xs:documentation>Describes how/if the notehead is filled.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attribute.head.fillcolor">
    <xs:attribute name="head.fillcolor" type="mei:data.COLOR">
      <xs:annotation>
        <xs:documentation>Captures the fill color of a notehead if different from the overall note color.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attribute.head.mod">
    <xs:attribute name="head.mod">
      <xs:annotation>
        <xs:documentation>Records any additional symbols applied to the notehead.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.NOTEHEADMODIFIER"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attribute.head.rotation">
    <xs:attribute name="head.rotation" type="mei:data.ROTATION">
      <xs:annotation>
        <xs:documentation>Describes rotation applied to the basic notehead shape. A positive value rotates the notehead in a counter-clockwise fashion, while negative values produce clockwise rotation.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attribute.head.shape">
    <xs:attribute name="head.shape" type="mei:data.HEADSHAPE">
      <xs:annotation>
        <xs:documentation>Used to override the head shape normally used for the given duration.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.noteheads.attribute.head.visible">
    <xs:attribute name="head.visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates if a feature should be rendered when the notation is presented graphically or sounded when it is presented in an aural form.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octave.attributes">
    <xs:attributeGroup ref="mei:att.octave.attribute.oct"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octave.attribute.oct">
    <xs:attribute name="oct" type="mei:data.OCTAVE">
      <xs:annotation>
        <xs:documentation>Captures written octave information.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octavedefault.attributes">
    <xs:attributeGroup ref="mei:att.octavedefault.attribute.octave.default"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octavedefault.attribute.octave.default">
    <xs:attribute name="octave.default" type="mei:data.OCTAVE">
      <xs:annotation>
        <xs:documentation>Contains a default octave specification for use when the first note, rest, chord, etc. in a measure does not have an octave value specified.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octavedisplacement.attributes">
    <xs:attributeGroup ref="mei:att.octavedisplacement.attribute.dis"/>
    <xs:attributeGroup ref="mei:att.octavedisplacement.attribute.dis.place"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octavedisplacement.attribute.dis">
    <xs:attribute name="dis" type="mei:data.OCTAVE.DIS">
      <xs:annotation>
        <xs:documentation>Records the amount of octave displacement.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octavedisplacement.attribute.dis.place">
    <xs:attribute name="dis.place" type="mei:data.PLACE">
      <xs:annotation>
        <xs:documentation>Records the direction of octave displacement.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.onelinestaff.attributes">
    <xs:attributeGroup ref="mei:att.onelinestaff.attribute.ontheline"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.onelinestaff.attribute.ontheline">
    <xs:attribute name="ontheline" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines the placement of notes on a 1-line staff. A value of 'true' places all notes on the line, while a value of 'false' places stems-up notes above the line and stems-down notes below the line.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.optimization.attributes">
    <xs:attributeGroup ref="mei:att.optimization.attribute.optimize"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.optimization.attribute.optimize">
    <xs:attribute name="optimize" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether staves without notes, rests, etc. should be displayed. When the value is 'true', empty staves are displayed.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.layerident.attributes">
    <xs:attributeGroup ref="mei:att.origin.layerident.attribute.origin.layer"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.layerident.attribute.origin.layer">
    <xs:attribute name="origin.layer">
      <xs:annotation>
        <xs:documentation>identifies the layer on which referenced notation occurs.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="xs:positiveInteger"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.staffident.attributes">
    <xs:attributeGroup ref="mei:att.origin.staffident.attribute.origin.staff"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.staffident.attribute.origin.staff">
    <xs:attribute name="origin.staff">
      <xs:annotation>
        <xs:documentation>signifies the staff on which referenced notation occurs. Defaults to the same value as the local staff. Mandatory when applicable.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="xs:positiveInteger"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.startendid.attributes">
    <xs:attributeGroup ref="mei:att.origin.startendid.attribute.origin.startid"/>
    <xs:attributeGroup ref="mei:att.origin.startendid.attribute.origin.endid"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.startendid.attribute.origin.startid">
    <xs:attribute name="origin.startid" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>indicates the first element in a sequence of events.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.startendid.attribute.origin.endid">
    <xs:attribute name="origin.endid" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>indicates the final element in a sequence of events.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.timestamp.musical.attributes">
    <xs:attributeGroup ref="mei:att.origin.timestamp.musical.attribute.origin.tstamp"/>
    <xs:attributeGroup ref="mei:att.origin.timestamp.musical.attribute.origin.tstamp2"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.timestamp.musical.attribute.origin.tstamp">
    <xs:attribute name="origin.tstamp" type="mei:data.MEASUREBEATOFFSET">
      <xs:annotation>
        <xs:documentation>encodes the starting point of musical material in terms of musical time, i.e., a (potentially negative) count of measures plus a beat location.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.origin.timestamp.musical.attribute.origin.tstamp2">
    <xs:attribute name="origin.tstamp2" type="mei:data.MEASUREBEAT">
      <xs:annotation>
        <xs:documentation>encodes the ending point of musical material in terms of musical time, i.e., a count of measures plus a beat location. The values are relative to the measure identified by @origin.tstamp.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornam.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.ornamentaccid.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornam.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornam.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornam.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pad.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.pad.log.attribute.num"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pad.log.attribute.num">
    <xs:attribute name="num" use="required" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Amount of "padding" to be added, in interline units; that is, in units of 1/2 the distance between adjacent staff lines.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attributes">
    <xs:attributeGroup ref="mei:att.pages.attribute.page.height"/>
    <xs:attributeGroup ref="mei:att.pages.attribute.page.width"/>
    <xs:attributeGroup ref="mei:att.pages.attribute.page.topmar"/>
    <xs:attributeGroup ref="mei:att.pages.attribute.page.botmar"/>
    <xs:attributeGroup ref="mei:att.pages.attribute.page.leftmar"/>
    <xs:attributeGroup ref="mei:att.pages.attribute.page.rightmar"/>
    <xs:attributeGroup ref="mei:att.pages.attribute.page.panels"/>
    <xs:attributeGroup ref="mei:att.pages.attribute.page.scale"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.height">
    <xs:attribute name="page.height" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Specifies the height of the page; may be expressed in real-world units or staff steps.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.width">
    <xs:attribute name="page.width" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Describes the width of the page; may be expressed in real-world units or staff steps.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.topmar">
    <xs:attribute name="page.topmar" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Indicates the amount of whitespace at the top of a page.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.botmar">
    <xs:attribute name="page.botmar" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Indicates the amount of whitespace at the bottom of a page.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.leftmar">
    <xs:attribute name="page.leftmar" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Indicates the amount of whitespace at the left side of a page.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.rightmar">
    <xs:attribute name="page.rightmar" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Indicates the amount of whitespace at the right side of a page.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.panels">
    <xs:attribute name="page.panels" type="mei:data.PAGE.PANELS">
      <xs:annotation>
        <xs:documentation>Indicates the number of logical pages to be rendered on a single physical page.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pages.attribute.page.scale">
    <xs:attribute name="page.scale" type="mei:data.PGSCALE">
      <xs:annotation>
        <xs:documentation>Indicates how the page should be scaled when rendered.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.part.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.parts.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pb.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pb.vis.attributes">
    <xs:attributeGroup ref="mei:att.pb.vis.attribute.folium"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pb.vis.attribute.folium">
    <xs:attribute name="folium">
      <xs:annotation>
        <xs:documentation>States the side of a leaf (as in a manuscript) on which the content following the &lt;pb&gt; element occurs.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="verso">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="recto">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.phrase.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
    <xs:attributeGroup ref="mei:att.joined.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.phrase.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.phrase.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.phrase.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    <xs:attributeGroup ref="mei:att.phrase.vis.cmn.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pitch.attributes">
    <xs:attributeGroup ref="mei:att.pitch.attribute.pname"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pitch.attribute.pname">
    <xs:attribute name="pname" type="mei:data.PITCHNAME">
      <xs:annotation>
        <xs:documentation>Contains a written pitch name.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pitched.attributes">
    <xs:attributeGroup ref="mei:att.pitch.attributes"/>
    <xs:attributeGroup ref="mei:att.octave.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.placement.attributes">
    <xs:attributeGroup ref="mei:att.placement.attribute.place"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.placement.attribute.place">
    <xs:attribute name="place" type="mei:data.STAFFREL">
      <xs:annotation>
        <xs:documentation>Captures the placement of the item with respect to the staff with which it is associated.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.plist.attributes">
    <xs:attributeGroup ref="mei:att.plist.attribute.plist"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.plist.attribute.plist">
    <xs:attribute name="plist">
      <xs:annotation>
        <xs:documentation>Contains a space separated list of references that identify active participants in a collection/relationship, such as notes under a phrase mark; that is, the entities pointed "from".</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pointing.attributes">
    <xs:attributeGroup ref="mei:att.pointing.attribute.xlinkactuate"/>
    <xs:attributeGroup ref="mei:att.pointing.attribute.xlinkrole"/>
    <xs:attributeGroup ref="mei:att.pointing.attribute.xlinkshow"/>
    <xs:attributeGroup ref="mei:att.pointing.attribute.target"/>
    <xs:attributeGroup ref="mei:att.pointing.attribute.targettype"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pointing.attribute.xlinkactuate">
    <xs:attribute ref="xlink:actuate"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pointing.attribute.xlinkrole">
    <xs:attribute ref="xlink:role"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pointing.attribute.xlinkshow">
    <xs:attribute ref="xlink:show"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pointing.attribute.target">
    <xs:attribute name="target">
      <xs:annotation>
        <xs:documentation>Allows the use of one or more previously-undeclared URIs to identify passive participants in a relationship; that is, the entities pointed "to".</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pointing.attribute.targettype">
    <xs:attribute name="targettype" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Characterization of target resource(s) using any convenient classification scheme or typology.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.quantity.attributes">
    <xs:attributeGroup ref="mei:att.quantity.attribute.quantity"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.quantity.attribute.quantity">
    <xs:attribute name="quantity">
      <xs:annotation>
        <xs:documentation>Numeric value capturing a measurement or count. Can only be interpreted in combination with the unit or currency attribute.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:decimal">
          <xs:minInclusive value="0"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.relativesize.attributes">
    <xs:attributeGroup ref="mei:att.relativesize.attribute.size"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.relativesize.attribute.size">
    <xs:attribute name="size" type="mei:data.SIZE">
      <xs:annotation>
        <xs:documentation>Describes the relative size of a feature.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.responsibility.attributes">
    <xs:attributeGroup ref="mei:att.responsibility.attribute.resp"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.responsibility.attribute.resp">
    <xs:attribute name="resp">
      <xs:annotation>
        <xs:documentation>Indicates the agent(s) responsible for some aspect of the text's creation, transcription, editing, or encoding. Its value must point to one or more identifiers declared in the document header.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
    <xs:attributeGroup ref="mei:att.rest.ges.mensural.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.log.attributes">
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.fermatapresent.attributes"/>
    <xs:attributeGroup ref="mei:att.tupletpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.rest.log.cmn.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.enclosingchars.attributes"/>
    <xs:attributeGroup ref="mei:att.relativesize.attributes"/>
    <xs:attributeGroup ref="mei:att.rest.vis.mensural.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.pitched.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.sb.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.sb.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.sb.vis.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.sb.vis.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Indicates whether hash marks should be rendered between systems. See Read, p. 436, ex. 26-3.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="hash">
            <xs:annotation>
              <xs:documentation>Display hash marks between systems.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scalable.attributes">
    <xs:attributeGroup ref="mei:att.scalable.attribute.scale"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scalable.attribute.scale">
    <xs:attribute name="scale" type="mei:data.PERCENT">
      <xs:annotation>
        <xs:documentation>Scale factor to be applied to the feature to make it the desired display size.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.score.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.ges.attributes">
    <xs:attributeGroup ref="mei:att.channelized.attributes"/>
    <xs:attributeGroup ref="mei:att.timebase.attributes"/>
    <xs:attributeGroup ref="mei:att.miditempo.attributes"/>
    <xs:attributeGroup ref="mei:att.mmtempo.attributes"/>
    <xs:attributeGroup ref="mei:att.scoreDef.ges.attribute.tune.pname"/>
    <xs:attributeGroup ref="mei:att.scoreDef.ges.attribute.tune.Hz"/>
    <xs:attributeGroup ref="mei:att.scoreDef.ges.attribute.tune.temper"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.ges.attribute.tune.pname">
    <xs:attribute name="tune.pname" type="mei:data.PITCHNAME">
      <xs:annotation>
        <xs:documentation>Holds the pitch name of a tuning reference pitch.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.ges.attribute.tune.Hz">
    <xs:attribute name="tune.Hz" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Holds a value for cycles per second, i.e., Hertz, for a tuning reference pitch.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.ges.attribute.tune.temper">
    <xs:attribute name="tune.temper" type="mei:data.TEMPERAMENT">
      <xs:annotation>
        <xs:documentation>Provides an indication of the tuning system, 'just', for example.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.log.attributes">
    <xs:attributeGroup ref="mei:att.cleffing.log.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.default.attributes"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.log.attributes"/>
    <xs:attributeGroup ref="mei:att.meterSigDefault.log.attributes"/>
    <xs:attributeGroup ref="mei:att.octavedefault.attributes"/>
    <xs:attributeGroup ref="mei:att.transposition.attributes"/>
    <xs:attributeGroup ref="mei:att.scoreDef.log.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.scoreDef.log.mensural.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.vis.attributes">
    <xs:attributeGroup ref="mei:att.barplacement.attributes"/>
    <xs:attributeGroup ref="mei:att.cleffing.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.distances.attributes"/>
    <xs:attributeGroup ref="mei:att.endings.attributes"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.lyricstyle.attributes"/>
    <xs:attributeGroup ref="mei:att.measurenumbers.attributes"/>
    <xs:attributeGroup ref="mei:att.meterSigDefault.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.multinummeasures.attributes"/>
    <xs:attributeGroup ref="mei:att.notationstyle.attributes"/>
    <xs:attributeGroup ref="mei:att.onelinestaff.attributes"/>
    <xs:attributeGroup ref="mei:att.optimization.attributes"/>
    <xs:attributeGroup ref="mei:att.pages.attributes"/>
    <xs:attributeGroup ref="mei:att.spacing.attributes"/>
    <xs:attributeGroup ref="mei:att.systems.attributes"/>
    <xs:attributeGroup ref="mei:att.textstyle.attributes"/>
    <xs:attributeGroup ref="mei:att.scoreDef.vis.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.scoreDef.vis.mensural.attributes"/>
    <xs:attributeGroup ref="mei:att.scoreDef.vis.attribute.vu.height"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.vis.attribute.vu.height">
    <xs:attribute name="vu.height">
      <xs:annotation>
        <xs:documentation>Defines the height of a "virtual unit" (vu) in terms of real-world units. A single vu is half the distance between the vertical center point of a staff line and that of an adjacent staff line.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:pattern value="\d+(\.\d+)?(cm|mm|in|pt|pc)"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.section.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.section.vis.attributes">
    <xs:attributeGroup ref="mei:att.section.vis.attribute.restart"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.section.vis.attribute.restart">
    <xs:attribute name="restart" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates that staves begin again with this section.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.sequence.attributes">
    <xs:attributeGroup ref="mei:att.sequence.attribute.seq"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.sequence.attribute.seq">
    <xs:attribute name="seq" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Used to assign a sequence number related to the order in which the encoded features carrying this attribute are believed to have occurred.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slashcount.attributes">
    <xs:attributeGroup ref="mei:att.slashcount.attribute.slash"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slashcount.attribute.slash">
    <xs:attribute name="slash" type="mei:data.SLASH">
      <xs:annotation>
        <xs:documentation>Indicates the number of slashes present.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slurpresent.attributes">
    <xs:attributeGroup ref="mei:att.slurpresent.attribute.slur"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slurpresent.attribute.slur">
    <xs:attribute name="slur">
      <xs:annotation>
        <xs:documentation>Indicates that this element participates in a slur. If visual information about the slur needs to be recorded, then a &lt;slur&gt; element should be employed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.SLUR"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.space.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.space.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.space.log.attributes">
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.fermatapresent.attributes"/>
    <xs:attributeGroup ref="mei:att.tupletpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.space.log.cmn.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.space.vis.attributes">
    <xs:attributeGroup ref="mei:att.space.vis.attribute.compressable"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.space.vis.attribute.compressable">
    <xs:attribute name="compressable" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether a space is 'compressible', i.e., if it may be removed at the discretion of processing software.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.spacing.attributes">
    <xs:attributeGroup ref="mei:att.spacing.attribute.spacing.packexp"/>
    <xs:attributeGroup ref="mei:att.spacing.attribute.spacing.packfact"/>
    <xs:attributeGroup ref="mei:att.spacing.attribute.spacing.staff"/>
    <xs:attributeGroup ref="mei:att.spacing.attribute.spacing.system"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.spacing.attribute.spacing.packexp">
    <xs:attribute name="spacing.packexp" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Describes a note's spacing relative to its time value.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.spacing.attribute.spacing.packfact">
    <xs:attribute name="spacing.packfact" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Describes the note spacing of output.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.spacing.attribute.spacing.staff">
    <xs:attribute name="spacing.staff" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Specifies the minimum amount of space between adjacent staves in the same system; measured from the bottom line of the staff above to the top line of the staff below.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.spacing.attribute.spacing.system">
    <xs:attribute name="spacing.system">
      <xs:annotation>
        <xs:documentation>Describes the space between adjacent systems; a pair of space-separated values (minimum and maximum, respectively) provides a range between which a rendering system-supplied value may fall, while a single value indicates a fixed amount of space; that is, the minimum and maximum values are equal.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list>
              <xs:simpleType>
                <xs:union memberTypes="mei:data.MEASUREMENTREL mei:data.MEASUREMENTREL"/>
              </xs:simpleType>
            </xs:list>
          </xs:simpleType>
          <xs:minLength value="1"/>
          <xs:maxLength value="2"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staff.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staff.log.attributes">
    <xs:attributeGroup ref="mei:att.meterconformance.attributes"/>
    <xs:attributeGroup ref="mei:att.staff.log.attribute.def"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staff.log.attribute.def">
    <xs:attribute name="def" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Provides a mechanism for linking the staff to a staffDef element.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staff.vis.attributes">
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.ges.attributes">
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
    <xs:attributeGroup ref="mei:att.timebase.attributes"/>
    <xs:attributeGroup ref="mei:att.staffDef.ges.tablature.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.log.attributes">
    <xs:attributeGroup ref="mei:att.cleffing.log.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.default.attributes"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.log.attributes"/>
    <xs:attributeGroup ref="mei:att.meterSigDefault.log.attributes"/>
    <xs:attributeGroup ref="mei:att.notationtype.attributes"/>
    <xs:attributeGroup ref="mei:att.octavedefault.attributes"/>
    <xs:attributeGroup ref="mei:att.transposition.attributes"/>
    <xs:attributeGroup ref="mei:att.staffDef.log.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.staffDef.log.mensural.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.attributes">
    <xs:attributeGroup ref="mei:att.cleffing.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.distances.attributes"/>
    <xs:attributeGroup ref="mei:att.keySigDefault.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.labels.addl.attributes"/>
    <xs:attributeGroup ref="mei:att.lyricstyle.attributes"/>
    <xs:attributeGroup ref="mei:att.meterSigDefault.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.multinummeasures.attributes"/>
    <xs:attributeGroup ref="mei:att.onelinestaff.attributes"/>
    <xs:attributeGroup ref="mei:att.scalable.attributes"/>
    <xs:attributeGroup ref="mei:att.textstyle.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.mensural.attributes"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.attribute.grid.show"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.attribute.layerscheme"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.attribute.lines"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.attribute.lines.color"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.attribute.lines.visible"/>
    <xs:attributeGroup ref="mei:att.staffDef.vis.attribute.spacing"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.attribute.grid.show">
    <xs:attribute name="grid.show" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines whether to display guitar chord grids.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.attribute.layerscheme">
    <xs:attribute name="layerscheme" type="mei:data.LAYERSCHEME">
      <xs:annotation>
        <xs:documentation>Indicates the number of layers and their stem directions.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.attribute.lines">
    <xs:attribute name="lines" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Indicates the number of staff lines.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.attribute.lines.color">
    <xs:attribute name="lines.color">
      <xs:annotation>
        <xs:documentation>Captures the colors of the staff lines. The value is structured; that is, it should have the same number of space-separated RGB values as the number of lines indicated by the lines attribute. A line can be made invisible by assigning it the same RGB value as the background, usually white.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.COLOR"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.attribute.lines.visible">
    <xs:attribute name="lines.visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Records whether all staff lines are visible.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.attribute.spacing">
    <xs:attribute name="spacing" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records the absolute distance (as opposed to the relative distances recorded in &lt;scoreDef&gt; elements) between this staff and the preceding one in the same system. This value is meaningless for the first staff in a system since the spacing.system attribute indicates the spacing between systems.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffgroupingsym.attributes">
    <xs:attributeGroup ref="mei:att.staffgroupingsym.attribute.symbol"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffgroupingsym.attribute.symbol">
    <xs:attribute name="symbol">
      <xs:annotation>
        <xs:documentation>Specifies the symbol used to group a set of staves.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="brace">
            <xs:annotation>
              <xs:documentation>Curved symbol, i.e., {.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="bracket">
            <xs:annotation>
              <xs:documentation>Square symbol, i.e., [, but with curved/angled top and bottom segments.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="bracketsq">
            <xs:annotation>
              <xs:documentation>Square symbol, i.e., [, with horizontal top and bottom segments.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="line">
            <xs:annotation>
              <xs:documentation>Line symbol, i.e., |, (wide) line without top and bottom curved/horizontal segments.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="none">
            <xs:annotation>
              <xs:documentation>Grouping symbol missing.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffGrp.ges.attributes">
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffGrp.vis.attributes">
    <xs:attributeGroup ref="mei:att.labels.addl.attributes"/>
    <xs:attributeGroup ref="mei:att.staffgroupingsym.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.staffGrp.vis.attribute.barthru"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffGrp.vis.attribute.barthru">
    <xs:attribute name="barthru" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether bar lines go across the space between staves (true) or are only drawn across the lines of each staff (false).</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffident.attributes">
    <xs:attributeGroup ref="mei:att.staffident.attribute.staff"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffident.attribute.staff">
    <xs:attribute name="staff">
      <xs:annotation>
        <xs:documentation>Signifies the staff on which a notated event occurs or to which a control event applies. Mandatory when applicable.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="xs:positiveInteger"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffloc.attributes">
    <xs:attributeGroup ref="mei:att.staffloc.attribute.loc"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffloc.attribute.loc">
    <xs:attribute name="loc" type="mei:data.STAFFLOC">
      <xs:annotation>
        <xs:documentation>Holds the staff location of the feature.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffloc.pitched.attributes">
    <xs:attributeGroup ref="mei:att.staffloc.pitched.attribute.ploc"/>
    <xs:attributeGroup ref="mei:att.staffloc.pitched.attribute.oloc"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffloc.pitched.attribute.ploc">
    <xs:attribute name="ploc" type="mei:data.PITCHNAME">
      <xs:annotation>
        <xs:documentation>Captures staff location in terms of written pitch name.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffloc.pitched.attribute.oloc">
    <xs:attribute name="oloc" type="mei:data.OCTAVE">
      <xs:annotation>
        <xs:documentation>Records staff location in terms of written octave.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.startendid.attributes">
    <xs:attributeGroup ref="mei:att.startid.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attribute.endid"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.startendid.attribute.endid">
    <xs:attribute name="endid" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Indicates the final element in a sequence of events to which the feature applies.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.startid.attributes">
    <xs:attributeGroup ref="mei:att.startid.attribute.startid"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.startid.attribute.startid">
    <xs:attribute name="startid" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Holds a reference to the first element in a sequence of events to which the feature applies.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.attributes">
    <xs:attributeGroup ref="mei:att.stems.cmn.attributes"/>
    <xs:attributeGroup ref="mei:att.stems.attribute.stem.dir"/>
    <xs:attributeGroup ref="mei:att.stems.attribute.stem.len"/>
    <xs:attributeGroup ref="mei:att.stems.attribute.stem.mod"/>
    <xs:attributeGroup ref="mei:att.stems.attribute.stem.pos"/>
    <xs:attributeGroup ref="mei:att.stems.attribute.stem.x"/>
    <xs:attributeGroup ref="mei:att.stems.attribute.stem.y"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.attribute.stem.dir">
    <xs:attribute name="stem.dir" type="mei:data.STEMDIRECTION">
      <xs:annotation>
        <xs:documentation>Describes the direction of a stem.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.attribute.stem.len">
    <xs:attribute name="stem.len" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Encodes the stem length.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.attribute.stem.mod">
    <xs:attribute name="stem.mod" type="mei:data.STEMMODIFIER">
      <xs:annotation>
        <xs:documentation>Encodes any stem "modifiers"; that is, symbols rendered on the stem, such as tremolo or Sprechstimme indicators.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.attribute.stem.pos">
    <xs:attribute name="stem.pos" type="mei:data.STEMPOSITION">
      <xs:annotation>
        <xs:documentation>Records the position of the stem in relation to the note head(s).</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.attribute.stem.x">
    <xs:attribute name="stem.x" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Records the output x coordinate of the stem's attachment point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.attribute.stem.y">
    <xs:attribute name="stem.y" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Records the output y coordinate of the stem's attachment point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.syl.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.syl.log.attributes">
    <xs:attributeGroup ref="mei:att.syl.log.attribute.con"/>
    <xs:attributeGroup ref="mei:att.syl.log.attribute.wordpos"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.syl.log.attribute.con">
    <xs:attribute name="con">
      <xs:annotation>
        <xs:documentation>Describes the symbols typically used to indicate breaks between syllables and their functions.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Space (word separator).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="d">
            <xs:annotation>
              <xs:documentation>Dash (syllable separator).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="u">
            <xs:annotation>
              <xs:documentation>Underscore (syllable extension).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="t">
            <xs:annotation>
              <xs:documentation>Tilde (syllable elision).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="c">
            <xs:annotation>
              <xs:documentation>Circumflex [angled line above] (syllable elision).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="v">
            <xs:annotation>
              <xs:documentation>Caron [angled line below] (syllable elision).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="i">
            <xs:annotation>
              <xs:documentation>Inverted breve [curved line above] (syllable elision).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="b">
            <xs:annotation>
              <xs:documentation>Breve [curved line below] (syllable elision).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.syl.log.attribute.wordpos">
    <xs:attribute name="wordpos">
      <xs:annotation>
        <xs:documentation>Records the position of a syllable within a word.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="i">
            <xs:annotation>
              <xs:documentation>(initial) first syllable.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="m">
            <xs:annotation>
              <xs:documentation>(medial) neither first nor last syllable.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="t">
            <xs:annotation>
              <xs:documentation>(terminal) last syllable.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.syl.vis.attributes">
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.horizontalalign.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.syltext.attributes">
    <xs:attributeGroup ref="mei:att.syltext.attribute.syl"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.syltext.attribute.syl">
    <xs:attribute name="syl" type="xs:string">
      <xs:annotation>
        <xs:documentation>Holds an associated sung text syllable.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.systems.attributes">
    <xs:attributeGroup ref="mei:att.systems.attribute.system.leftline"/>
    <xs:attributeGroup ref="mei:att.systems.attribute.system.leftmar"/>
    <xs:attributeGroup ref="mei:att.systems.attribute.system.rightmar"/>
    <xs:attributeGroup ref="mei:att.systems.attribute.system.topmar"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.systems.attribute.system.leftline">
    <xs:attribute name="system.leftline" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether the staves are joined at the left by a continuous line. The default value is "true". Do not confuse this with the heavy vertical line used as a grouping symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.systems.attribute.system.leftmar">
    <xs:attribute name="system.leftmar" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Describes the amount of whitespace at the left system margin relative to page.leftmar.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.systems.attribute.system.rightmar">
    <xs:attribute name="system.rightmar" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Describes the amount of whitespace at the right system margin relative to page.rightmar.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.systems.attribute.system.topmar">
    <xs:attribute name="system.topmar" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Describes the distance from page's top edge to the first system; used for first page only.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.targeteval.attributes">
    <xs:attributeGroup ref="mei:att.targeteval.attribute.evaluate"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.targeteval.attribute.evaluate">
    <xs:attribute name="evaluate">
      <xs:annotation>
        <xs:documentation>Specifies the intended meaning when a participant in a relationship is itself a pointer.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="all">
            <xs:annotation>
              <xs:documentation>If an element pointed to is itself a pointer, then the target of that pointer will be taken, and so on, until an element is found which is not a pointer.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="one">
            <xs:annotation>
              <xs:documentation>If an element pointed to is itself a pointer, then its target (whether a pointer or not) is taken as the target of this pointer.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="none">
            <xs:annotation>
              <xs:documentation>No further evaluation of targets is carried out beyond that needed to find the element(s) specified in plist or target attribute.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tempo.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tempo.ges.attributes">
    <xs:attributeGroup ref="mei:att.miditempo.attributes"/>
    <xs:attributeGroup ref="mei:att.mmtempo.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tempo.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startid.attributes"/>
    <xs:attributeGroup ref="mei:att.tempo.log.attribute.func"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tempo.log.attribute.func">
    <xs:attribute name="func">
      <xs:annotation>
        <xs:documentation>Records the function of a tempo indication.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="continuous">
            <xs:annotation>
              <xs:documentation>Marks a gradual change of tempo, such as "accel." or "rit."</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="instantaneous">
            <xs:annotation>
              <xs:documentation>Represents a static tempo instruction, such as a textual term like "Adagio", a metronome marking like "♩=70", or a combination of text and metronome indication.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="metricmod">
            <xs:annotation>
              <xs:documentation>Captures a change in pulse rate (tempo) and/or pulse grouping (subdivision) in an "equation" of the form [tempo before change] = [tempo after change].</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="precedente">
            <xs:annotation>
              <xs:documentation>Indicates a change in pulse rate (tempo) and/or pulse grouping (subdivision) in an "equation" of the form [tempo after change] = [tempo before change]. The term "precedente" often appears following the "equation" to distinquish this kind of historical usage from the modern metric modulation form.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tempo.vis.attributes">
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.textstyle.attributes">
    <xs:attributeGroup ref="mei:att.textstyle.attribute.text.fam"/>
    <xs:attributeGroup ref="mei:att.textstyle.attribute.text.name"/>
    <xs:attributeGroup ref="mei:att.textstyle.attribute.text.size"/>
    <xs:attributeGroup ref="mei:att.textstyle.attribute.text.style"/>
    <xs:attributeGroup ref="mei:att.textstyle.attribute.text.weight"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.textstyle.attribute.text.fam">
    <xs:attribute name="text.fam" type="mei:data.FONTFAMILY">
      <xs:annotation>
        <xs:documentation>Provides a default value for the font family name of text (other than lyrics) when this information is not provided on the individual elements.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.textstyle.attribute.text.name">
    <xs:attribute name="text.name" type="mei:data.FONTNAME">
      <xs:annotation>
        <xs:documentation>Provides a default value for the font name of text (other than lyrics) when this information is not provided on the individual elements.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.textstyle.attribute.text.size">
    <xs:attribute name="text.size" type="mei:data.FONTSIZE">
      <xs:annotation>
        <xs:documentation>Provides a default value for the font size of text (other than lyrics) when this information is not provided on the individual elements.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.textstyle.attribute.text.style">
    <xs:attribute name="text.style" type="mei:data.FONTSTYLE">
      <xs:annotation>
        <xs:documentation>Provides a default value for the font style of text (other than lyrics) when this information is not provided on the individual elements.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.textstyle.attribute.text.weight">
    <xs:attribute name="text.weight" type="mei:data.FONTWEIGHT">
      <xs:annotation>
        <xs:documentation>Provides a default value for the font weight for text (other than lyrics) when this information is not provided on the individual elements.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tiepresent.attributes">
    <xs:attributeGroup ref="mei:att.tiepresent.attribute.tie"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tiepresent.attribute.tie">
    <xs:attribute name="tie">
      <xs:annotation>
        <xs:documentation>Indicates that this element participates in a tie. If visual information about the tie needs to be recorded, then a &lt;tie&gt; element should be employed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.TIE"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timestamp.musical.attributes">
    <xs:attributeGroup ref="mei:att.timestamp.musical.attribute.tstamp"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timestamp.musical.attribute.tstamp">
    <xs:attribute name="tstamp" type="mei:data.BEAT">
      <xs:annotation>
        <xs:documentation>Encodes the onset time in terms of musical time, i.e., beats[.fractional_beat_part].</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timestamp.performed.attributes">
    <xs:attributeGroup ref="mei:att.timestamp.performed.attribute.tstamp.ges"/>
    <xs:attributeGroup ref="mei:att.timestamp.performed.attribute.tstamp.real"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timestamp.performed.attribute.tstamp.ges">
    <xs:attribute name="tstamp.ges" type="mei:data.DURATION.gestural">
      <xs:annotation>
        <xs:documentation>Captures performed onset time in several forms; that is, ppq (MIDI clicks and MusicXML 'divisions'), Humdrum **recip values, beats, seconds, or mensural duration values.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timestamp.performed.attribute.tstamp.real">
    <xs:attribute name="tstamp.real" type="mei:data.ISOTIME">
      <xs:annotation>
        <xs:documentation>Used to record the onset time in terms of ISO time.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timestamp2.musical.attributes">
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attribute.tstamp2"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timestamp2.musical.attribute.tstamp2">
    <xs:attribute name="tstamp2" type="mei:data.MEASUREBEAT">
      <xs:annotation>
        <xs:documentation>Encodes the ending point of an event in terms of musical time, i.e., a count of measures plus a beat location.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.transposition.attributes">
    <xs:attributeGroup ref="mei:att.transposition.attribute.trans.diat"/>
    <xs:attributeGroup ref="mei:att.transposition.attribute.trans.semi"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.transposition.attribute.trans.diat">
    <xs:attribute name="trans.diat" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Records the amount of diatonic pitch shift, e.g., C to C♯ = 0, C to D♭ = 1, necessary to calculate the sounded pitch from the written one.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.transposition.attribute.trans.semi">
    <xs:attribute name="trans.semi" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Records the amount of pitch shift in semitones, e.g., C to C♯ = 1, C to D♭ = 1, necessary to calculate the sounded pitch from the written one.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tupletpresent.attributes">
    <xs:attributeGroup ref="mei:att.tupletpresent.attribute.tuplet"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tupletpresent.attribute.tuplet">
    <xs:attribute name="tuplet">
      <xs:annotation>
        <xs:documentation>Indicates that this feature participates in a tuplet. If visual information about the tuplet needs to be recorded, then a &lt;tuplet&gt; element should be employed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.TUPLET"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typed.attributes">
    <xs:attributeGroup ref="mei:att.typed.attribute.type"/>
    <xs:attributeGroup ref="mei:att.typed.attribute.subtype"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typed.attribute.type">
    <xs:attribute name="type" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Characterizes the element in some sense, using any convenient classification scheme or typology.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typed.attribute.subtype">
    <xs:attribute name="subtype" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Provide any sub-classification for the element, additional to that given by its type attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typography.attributes">
    <xs:attributeGroup ref="mei:att.typography.attribute.fontfam"/>
    <xs:attributeGroup ref="mei:att.typography.attribute.fontname"/>
    <xs:attributeGroup ref="mei:att.typography.attribute.fontsize"/>
    <xs:attributeGroup ref="mei:att.typography.attribute.fontstyle"/>
    <xs:attributeGroup ref="mei:att.typography.attribute.fontweight"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typography.attribute.fontfam">
    <xs:attribute name="fontfam" type="mei:data.FONTFAMILY">
      <xs:annotation>
        <xs:documentation>Contains the name of a font-family.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typography.attribute.fontname">
    <xs:attribute name="fontname" type="mei:data.FONTNAME">
      <xs:annotation>
        <xs:documentation>Holds the name of a font.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typography.attribute.fontsize">
    <xs:attribute name="fontsize" type="mei:data.FONTSIZE">
      <xs:annotation>
        <xs:documentation>Indicates the size of a font expressed in printers' points, i.e., 1/72nd of an inch, relative terms, e.g., "small", "larger", etc., or percentage values relative to "normal" size, e.g., "125%". </xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typography.attribute.fontstyle">
    <xs:attribute name="fontstyle" type="mei:data.FONTSTYLE">
      <xs:annotation>
        <xs:documentation>Records the style of a font, i.e, italic, oblique, or normal.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.typography.attribute.fontweight">
    <xs:attribute name="fontweight" type="mei:data.FONTWEIGHT">
      <xs:annotation>
        <xs:documentation>Used to indicate bold type.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visibility.attributes">
    <xs:attributeGroup ref="mei:att.visibility.attribute.visible"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visibility.attribute.visible">
    <xs:attribute name="visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates if a feature should be rendered when the notation is presented graphically or sounded when it is presented in an aural form.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.to.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.vo.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset.ho.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset.ho.attribute.ho"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset.ho.attribute.ho">
    <xs:attribute name="ho" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records a horizontal adjustment to a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset.to.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset.to.attribute.to"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset.to.attribute.to">
    <xs:attribute name="to" type="mei:data.TSTAMPOFFSET">
      <xs:annotation>
        <xs:documentation>Records a timestamp adjustment of a feature's programmatically-determined location in terms of musical time; that is, beats.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset.vo.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset.vo.attribute.vo"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset.vo.attribute.vo">
    <xs:attribute name="vo" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records the vertical adjustment of a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.vo.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.ho.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attribute.startho"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attribute.endho"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.ho.attribute.startho">
    <xs:attribute name="startho" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records the horizontal adjustment of a feature's programmatically-determined start point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.ho.attribute.endho">
    <xs:attribute name="endho" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records the horizontal adjustment of a feature's programmatically-determined end point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.to.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attribute.startto"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attribute.endto"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.to.attribute.startto">
    <xs:attribute name="startto" type="mei:data.TSTAMPOFFSET">
      <xs:annotation>
        <xs:documentation>Records a timestamp adjustment of a feature's programmatically-determined start point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.to.attribute.endto">
    <xs:attribute name="endto" type="mei:data.TSTAMPOFFSET">
      <xs:annotation>
        <xs:documentation>Records a timestamp adjustment of a feature's programmatically-determined end point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.vo.attributes">
    <xs:attributeGroup ref="mei:att.visualoffset2.vo.attribute.startvo"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.vo.attribute.endvo"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.vo.attribute.startvo">
    <xs:attribute name="startvo" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records a vertical adjustment of a feature's programmatically-determined start point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.visualoffset2.vo.attribute.endvo">
    <xs:attribute name="endvo" type="mei:data.MEASUREMENTREL">
      <xs:annotation>
        <xs:documentation>Records a vertical adjustment of a feature's programmatically-determined end point.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.whitespace.attributes">
    <xs:attributeGroup ref="mei:att.whitespace.attribute.xmlspace"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.whitespace.attribute.xmlspace">
    <xs:attribute ref="xml:space"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.width.attributes">
    <xs:attributeGroup ref="mei:att.width.attribute.width"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.width.attribute.width">
    <xs:attribute name="width" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Measurement of the horizontal dimension of an entity.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.xy.attributes">
    <xs:attributeGroup ref="mei:att.xy.attribute.x"/>
    <xs:attributeGroup ref="mei:att.xy.attribute.y"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.xy.attribute.x">
    <xs:attribute name="x" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Encodes an x coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.xy.attribute.y">
    <xs:attribute name="y" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Encodes an y coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.xy2.attributes">
    <xs:attributeGroup ref="mei:att.xy2.attribute.x2"/>
    <xs:attributeGroup ref="mei:att.xy2.attribute.y2"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.xy2.attribute.x2">
    <xs:attribute name="x2" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Encodes the optional 2nd x coordinate.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.xy2.attribute.y2">
    <xs:attribute name="y2" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Encodes the optional 2nd y coordinate.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.addressLike">
    <xs:sequence>
      <xs:element ref="mei:address"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:address"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:address"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:address"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:address"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:address"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.annotLike">
    <xs:sequence>
      <xs:element ref="mei:annot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.annotLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:annot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.annotLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:annot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.annotLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:annot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.annotLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:annot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.annotLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:annot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.biblLike">
    <xs:sequence>
      <xs:element ref="mei:bibl"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.biblLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:bibl"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.biblLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:bibl"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.biblLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:bibl"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.biblLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:bibl"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.biblLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:bibl"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.biblPart">
    <xs:choice>
      <xs:group ref="mei:model.editionLike"/>
      <xs:group ref="mei:model.respLike"/>
      <xs:element ref="mei:biblScope"/>
      <xs:element ref="mei:creation"/>
      <xs:element ref="mei:extent"/>
      <xs:element ref="mei:genre"/>
      <xs:element ref="mei:imprint"/>
      <xs:element ref="mei:physLoc"/>
      <xs:element ref="mei:recipient"/>
      <xs:element ref="mei:relatedItem"/>
      <xs:element ref="mei:series"/>
      <xs:element ref="mei:textLang"/>
      <xs:element ref="mei:perfDuration"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.captionLike">
    <xs:sequence>
      <xs:element ref="mei:caption"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.chordPart">
    <xs:choice>
      <xs:element ref="mei:artic"/>
      <xs:element ref="mei:note"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.controleventLike">
    <xs:choice>
      <xs:element ref="mei:dir"/>
      <xs:element ref="mei:dynam"/>
      <xs:element ref="mei:ornam"/>
      <xs:element ref="mei:phrase"/>
      <xs:element ref="mei:tempo"/>
      <xs:group ref="mei:model.controleventLike.cmn"/>
      <xs:element ref="mei:bend"/>
      <xs:element ref="mei:gliss"/>
      <xs:group ref="mei:model.controleventLike.harmony"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.controleventLike_alternation">
    <xs:choice>
      <xs:element ref="mei:dir"/>
      <xs:element ref="mei:dynam"/>
      <xs:element ref="mei:ornam"/>
      <xs:element ref="mei:phrase"/>
      <xs:element ref="mei:tempo"/>
      <xs:group ref="mei:model.controleventLike.cmn_alternation"/>
      <xs:element ref="mei:bend"/>
      <xs:element ref="mei:gliss"/>
      <xs:group ref="mei:model.controleventLike.harmony_alternation"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.controleventLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:dir"/>
      <xs:element ref="mei:dynam"/>
      <xs:element ref="mei:ornam"/>
      <xs:element ref="mei:phrase"/>
      <xs:element ref="mei:tempo"/>
      <xs:group ref="mei:model.controleventLike.cmn_sequence"/>
      <xs:element ref="mei:bend"/>
      <xs:element ref="mei:gliss"/>
      <xs:group ref="mei:model.controleventLike.harmony_sequence"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:dir"/>
      <xs:element minOccurs="0" ref="mei:dynam"/>
      <xs:element minOccurs="0" ref="mei:ornam"/>
      <xs:element minOccurs="0" ref="mei:phrase"/>
      <xs:element minOccurs="0" ref="mei:tempo"/>
      <xs:group minOccurs="0" ref="mei:model.controleventLike.cmn_sequenceOptional"/>
      <xs:element minOccurs="0" ref="mei:bend"/>
      <xs:element minOccurs="0" ref="mei:gliss"/>
      <xs:group minOccurs="0" ref="mei:model.controleventLike.harmony_sequenceOptional"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:dir"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:dynam"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:ornam"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:phrase"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:tempo"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.controleventLike.cmn_sequenceOptionalRepeatable"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:bend"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:gliss"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.controleventLike.harmony_sequenceOptionalRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:dir"/>
      <xs:element maxOccurs="unbounded" ref="mei:dynam"/>
      <xs:element maxOccurs="unbounded" ref="mei:ornam"/>
      <xs:element maxOccurs="unbounded" ref="mei:phrase"/>
      <xs:element maxOccurs="unbounded" ref="mei:tempo"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.controleventLike.cmn_sequenceRepeatable"/>
      <xs:element maxOccurs="unbounded" ref="mei:bend"/>
      <xs:element maxOccurs="unbounded" ref="mei:gliss"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.controleventLike.harmony_sequenceRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.dateLike">
    <xs:sequence>
      <xs:element ref="mei:date"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.dateLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:date"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.dateLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:date"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.dateLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:date"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.dateLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:date"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.dateLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:date"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.dimLike">
    <xs:choice>
      <xs:element ref="mei:depth"/>
      <xs:element ref="mei:height"/>
      <xs:element ref="mei:width"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.editionLike">
    <xs:sequence>
      <xs:element ref="mei:edition"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.editorialLike">
    <xs:choice>
      <xs:element ref="mei:abbr"/>
      <xs:element ref="mei:expan"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.editorialLike_alternation">
    <xs:choice>
      <xs:element ref="mei:abbr"/>
      <xs:element ref="mei:expan"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.editorialLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:abbr"/>
      <xs:element ref="mei:expan"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.editorialLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:abbr"/>
      <xs:element minOccurs="0" ref="mei:expan"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.editorialLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:abbr"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:expan"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.editorialLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:abbr"/>
      <xs:element maxOccurs="unbounded" ref="mei:expan"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.endingLike">
    <xs:sequence>
      <xs:element ref="mei:ending"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike">
    <xs:choice>
      <xs:group ref="mei:model.keySigLike"/>
      <xs:group ref="mei:model.meterSigLike"/>
      <xs:element ref="mei:barLine"/>
      <xs:element ref="mei:chord"/>
      <xs:element ref="mei:clef"/>
      <xs:element ref="mei:clefGrp"/>
      <xs:element ref="mei:custos"/>
      <xs:element ref="mei:note"/>
      <xs:element ref="mei:pad"/>
      <xs:element ref="mei:rest"/>
      <xs:element ref="mei:space"/>
      <xs:group ref="mei:model.eventLike.cmn"/>
      <xs:group ref="mei:model.eventLike.mensural"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.headLike">
    <xs:sequence>
      <xs:element ref="mei:head"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.identifierLike">
    <xs:sequence>
      <xs:element ref="mei:identifier"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.identifierLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:identifier"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.identifierLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:identifier"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.identifierLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:identifier"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.identifierLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:identifier"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.identifierLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:identifier"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.imprintPart">
    <xs:choice>
      <xs:element ref="mei:distributor"/>
      <xs:element ref="mei:publisher"/>
      <xs:element ref="mei:pubPlace"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.incipLike">
    <xs:sequence>
      <xs:element ref="mei:incip"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.instrDefLike">
    <xs:sequence>
      <xs:element ref="mei:instrDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.keyAccidLike">
    <xs:sequence>
      <xs:element ref="mei:keyAccid"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.keySigLike">
    <xs:sequence>
      <xs:element ref="mei:keySig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.keySigLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:keySig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.keySigLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:keySig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.keySigLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:keySig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.keySigLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:keySig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.keySigLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:keySig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.labelLike">
    <xs:sequence>
      <xs:element ref="mei:label"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerDefLike">
    <xs:sequence>
      <xs:element ref="mei:layerDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerLike">
    <xs:sequence>
      <xs:element ref="mei:layer"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart">
    <xs:choice>
      <xs:group ref="mei:model.eventLike"/>
      <xs:group ref="mei:model.layerPart.mensuralAndNeumes"/>
      <xs:group ref="mei:model.layerPart.cmn"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.layerPart.mensuralAndNeumes">
    <xs:choice>
      <xs:group ref="mei:model.scoreDefLike"/>
      <xs:group ref="mei:model.staffDefLike"/>
      <xs:group ref="mei:model.layerPart.mensural"/>
      <xs:group ref="mei:model.layerPart.neumes"/>
      <xs:group ref="mei:model.midiLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.lbLike">
    <xs:sequence>
      <xs:element ref="mei:lb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lbLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:lb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lbLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:lb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lbLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:lb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lbLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:lb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lbLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:lb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.mdivLike">
    <xs:sequence>
      <xs:element ref="mei:mdiv"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measurementLike">
    <xs:sequence>
      <xs:group ref="mei:model.numLike"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measurementLike_alternation">
    <xs:sequence>
      <xs:group ref="mei:model.numLike_alternation"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measurementLike_sequence">
    <xs:sequence>
      <xs:group ref="mei:model.numLike_sequence"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measurementLike_sequenceOptional">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.numLike_sequenceOptional"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measurementLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.numLike_sequenceOptionalRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measurementLike_sequenceRepeatable">
    <xs:sequence>
      <xs:group maxOccurs="unbounded" ref="mei:model.numLike_sequenceRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.meterSigLike">
    <xs:choice>
      <xs:element ref="mei:meterSig"/>
      <xs:element ref="mei:meterSigGrp"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.meterSigLike_alternation">
    <xs:choice>
      <xs:element ref="mei:meterSig"/>
      <xs:element ref="mei:meterSigGrp"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.meterSigLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:meterSig"/>
      <xs:element ref="mei:meterSigGrp"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.meterSigLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:meterSig"/>
      <xs:element minOccurs="0" ref="mei:meterSigGrp"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.meterSigLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:meterSig"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:meterSigGrp"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.meterSigLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:meterSig"/>
      <xs:element maxOccurs="unbounded" ref="mei:meterSigGrp"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.milestoneLike.music">
    <xs:choice>
      <xs:group ref="mei:model.pbLike"/>
      <xs:element ref="mei:sb"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.milestoneLike.text">
    <xs:choice>
      <xs:group ref="mei:model.lbLike"/>
      <xs:group ref="mei:model.pbLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike">
    <xs:choice>
      <xs:element ref="mei:name"/>
      <xs:group ref="mei:model.nameLike.agent"/>
      <xs:group ref="mei:model.nameLike.place"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike_alternation">
    <xs:choice>
      <xs:element ref="mei:name"/>
      <xs:group ref="mei:model.nameLike.agent_alternation"/>
      <xs:group ref="mei:model.nameLike.place_alternation"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:name"/>
      <xs:group ref="mei:model.nameLike.agent_sequence"/>
      <xs:group ref="mei:model.nameLike.place_sequence"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:name"/>
      <xs:group minOccurs="0" ref="mei:model.nameLike.agent_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.nameLike.place_sequenceOptional"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:name"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.nameLike.agent_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.nameLike.place_sequenceOptionalRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:name"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.nameLike.agent_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.nameLike.place_sequenceRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.noteModifierLike">
    <xs:choice>
      <xs:element ref="mei:accid"/>
      <xs:element ref="mei:artic"/>
      <xs:element ref="mei:dot"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.noteModifierLike_alternation">
    <xs:choice>
      <xs:element ref="mei:accid"/>
      <xs:element ref="mei:artic"/>
      <xs:element ref="mei:dot"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.noteModifierLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:accid"/>
      <xs:element ref="mei:artic"/>
      <xs:element ref="mei:dot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.noteModifierLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:accid"/>
      <xs:element minOccurs="0" ref="mei:artic"/>
      <xs:element minOccurs="0" ref="mei:dot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.noteModifierLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:accid"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:artic"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:dot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.noteModifierLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:accid"/>
      <xs:element maxOccurs="unbounded" ref="mei:artic"/>
      <xs:element maxOccurs="unbounded" ref="mei:dot"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.numLike">
    <xs:sequence>
      <xs:element ref="mei:num"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.numLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:num"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.numLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:num"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.numLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:num"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.numLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:num"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.numLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:num"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.paracontentPart">
    <xs:choice>
      <xs:group ref="mei:model.textphraseLike"/>
      <xs:group ref="mei:model.editLike"/>
      <xs:group ref="mei:model.transcriptionLike"/>
      <xs:group ref="mei:model.tableLike"/>
      <xs:group ref="mei:model.lgLike"/>
      <xs:group ref="mei:model.listLike"/>
      <xs:group ref="mei:model.quoteLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.partLike">
    <xs:sequence>
      <xs:element ref="mei:part"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.partsLike">
    <xs:sequence>
      <xs:element ref="mei:parts"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.pbLike">
    <xs:sequence>
      <xs:element ref="mei:pb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.pbLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:pb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.pbLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:pb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.pbLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:pb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.pbLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:pb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.pbLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:pb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.pLike">
    <xs:sequence>
      <xs:element ref="mei:p"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.rendLike">
    <xs:choice>
      <xs:element ref="mei:rend"/>
      <xs:element ref="mei:stack"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.rendLike_alternation">
    <xs:choice>
      <xs:element ref="mei:rend"/>
      <xs:element ref="mei:stack"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.rendLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:rend"/>
      <xs:element ref="mei:stack"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.rendLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:rend"/>
      <xs:element minOccurs="0" ref="mei:stack"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.rendLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:rend"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:stack"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.rendLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:rend"/>
      <xs:element maxOccurs="unbounded" ref="mei:stack"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.repositoryLike">
    <xs:sequence>
      <xs:element ref="mei:repository"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.repositoryLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:repository"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.repositoryLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:repository"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.repositoryLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:repository"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.repositoryLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:repository"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.repositoryLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:repository"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.resourceLike">
    <xs:choice>
      <xs:element ref="mei:facsimile"/>
      <xs:element ref="mei:performance"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.respLike">
    <xs:choice>
      <xs:group ref="mei:model.respLikePart"/>
      <xs:element ref="mei:respStmt"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.respLikePart">
    <xs:choice>
      <xs:element ref="mei:arranger"/>
      <xs:element ref="mei:author"/>
      <xs:element ref="mei:composer"/>
      <xs:element ref="mei:editor"/>
      <xs:element ref="mei:funder"/>
      <xs:element ref="mei:librettist"/>
      <xs:element ref="mei:lyricist"/>
      <xs:element ref="mei:sponsor"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.respLikePart_alternation">
    <xs:choice>
      <xs:element ref="mei:arranger"/>
      <xs:element ref="mei:author"/>
      <xs:element ref="mei:composer"/>
      <xs:element ref="mei:editor"/>
      <xs:element ref="mei:funder"/>
      <xs:element ref="mei:librettist"/>
      <xs:element ref="mei:lyricist"/>
      <xs:element ref="mei:sponsor"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.respLikePart_sequence">
    <xs:sequence>
      <xs:element ref="mei:arranger"/>
      <xs:element ref="mei:author"/>
      <xs:element ref="mei:composer"/>
      <xs:element ref="mei:editor"/>
      <xs:element ref="mei:funder"/>
      <xs:element ref="mei:librettist"/>
      <xs:element ref="mei:lyricist"/>
      <xs:element ref="mei:sponsor"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.respLikePart_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:arranger"/>
      <xs:element minOccurs="0" ref="mei:author"/>
      <xs:element minOccurs="0" ref="mei:composer"/>
      <xs:element minOccurs="0" ref="mei:editor"/>
      <xs:element minOccurs="0" ref="mei:funder"/>
      <xs:element minOccurs="0" ref="mei:librettist"/>
      <xs:element minOccurs="0" ref="mei:lyricist"/>
      <xs:element minOccurs="0" ref="mei:sponsor"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.respLikePart_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:arranger"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:author"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:composer"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:editor"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:funder"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:librettist"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:lyricist"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:sponsor"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.respLikePart_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:arranger"/>
      <xs:element maxOccurs="unbounded" ref="mei:author"/>
      <xs:element maxOccurs="unbounded" ref="mei:composer"/>
      <xs:element maxOccurs="unbounded" ref="mei:editor"/>
      <xs:element maxOccurs="unbounded" ref="mei:funder"/>
      <xs:element maxOccurs="unbounded" ref="mei:librettist"/>
      <xs:element maxOccurs="unbounded" ref="mei:lyricist"/>
      <xs:element maxOccurs="unbounded" ref="mei:sponsor"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scoreDefLike">
    <xs:sequence>
      <xs:element ref="mei:scoreDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scoreDefLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:scoreDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scoreDefLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:scoreDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scoreDefLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:scoreDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scoreDefLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:scoreDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scoreDefLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:scoreDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scoreLike">
    <xs:sequence>
      <xs:element ref="mei:score"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.scorePart">
    <xs:choice>
      <xs:group ref="mei:model.endingLike"/>
      <xs:group ref="mei:model.scoreDefLike"/>
      <xs:group ref="mei:model.sectionLike"/>
      <xs:group ref="mei:model.staffDefLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.sectionLike">
    <xs:sequence>
      <xs:element ref="mei:section"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.sectionPart">
    <xs:choice>
      <xs:group ref="mei:model.endingLike"/>
      <xs:group ref="mei:model.scoreDefLike"/>
      <xs:group ref="mei:model.sectionLike"/>
      <xs:group ref="mei:model.sectionPart.mensuralAndNeumes"/>
      <xs:group ref="mei:model.staffDefLike"/>
      <xs:group ref="mei:model.sectionPart.cmn"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.sectionPart.mensuralAndNeumes">
    <xs:sequence>
      <xs:group ref="mei:model.staffLike"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefLike">
    <xs:sequence>
      <xs:element ref="mei:staffDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:staffDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:staffDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:staffDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:staffDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:staffDef"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefPart">
    <xs:choice>
      <xs:group ref="mei:model.keySigLike"/>
      <xs:group ref="mei:model.meterSigLike"/>
      <xs:element ref="mei:clef"/>
      <xs:element ref="mei:clefGrp"/>
      <xs:group ref="mei:model.staffDefPart.mensural"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.staffGrpLike">
    <xs:sequence>
      <xs:element ref="mei:staffGrp"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffLike">
    <xs:sequence>
      <xs:element ref="mei:staff"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:staff"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:staff"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:staff"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:staff"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:staff"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffPart">
    <xs:choice>
      <xs:group ref="mei:model.layerLike"/>
      <xs:group ref="mei:model.staffPart.mensuralAndNeumes"/>
      <xs:group ref="mei:model.ossiaLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.staffPart.mensuralAndNeumes">
    <xs:choice>
      <xs:group ref="mei:model.scoreDefLike"/>
      <xs:group ref="mei:model.staffDefLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.textcomponentLike">
    <xs:choice>
      <xs:group ref="mei:model.pLike"/>
      <xs:group ref="mei:model.tableLike"/>
      <xs:group ref="mei:model.lgLike"/>
      <xs:group ref="mei:model.listLike"/>
      <xs:group ref="mei:model.quoteLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.textphraseLike">
    <xs:choice>
      <xs:group ref="mei:model.pbLike"/>
      <xs:group ref="mei:model.textphraseLike.limited"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.textphraseLike.limited">
    <xs:choice>
      <xs:group ref="mei:model.addressLike"/>
      <xs:group ref="mei:model.annotLike"/>
      <xs:group ref="mei:model.biblLike"/>
      <xs:group ref="mei:model.dateLike"/>
      <xs:group ref="mei:model.editorialLike"/>
      <xs:group ref="mei:model.identifierLike"/>
      <xs:group ref="mei:model.lbLike"/>
      <xs:group ref="mei:model.measurementLike"/>
      <xs:group ref="mei:model.nameLike"/>
      <xs:group ref="mei:model.rendLike"/>
      <xs:group ref="mei:model.titleLike"/>
      <xs:group ref="mei:model.figureLike"/>
      <xs:group ref="mei:model.addressPart"/>
      <xs:group ref="mei:model.nameLike.label"/>
      <xs:group ref="mei:model.locrefLike"/>
      <xs:element ref="mei:symbol"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.textphraseLike.limited_alternation">
    <xs:choice>
      <xs:group ref="mei:model.addressLike_alternation"/>
      <xs:group ref="mei:model.annotLike_alternation"/>
      <xs:group ref="mei:model.biblLike_alternation"/>
      <xs:group ref="mei:model.dateLike_alternation"/>
      <xs:group ref="mei:model.editorialLike_alternation"/>
      <xs:group ref="mei:model.identifierLike_alternation"/>
      <xs:group ref="mei:model.lbLike_alternation"/>
      <xs:group ref="mei:model.measurementLike_alternation"/>
      <xs:group ref="mei:model.nameLike_alternation"/>
      <xs:group ref="mei:model.rendLike_alternation"/>
      <xs:group ref="mei:model.titleLike_alternation"/>
      <xs:group ref="mei:model.figureLike_alternation"/>
      <xs:group ref="mei:model.addressPart_alternation"/>
      <xs:group ref="mei:model.nameLike.label_alternation"/>
      <xs:group ref="mei:model.locrefLike_alternation"/>
      <xs:element ref="mei:symbol"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.textphraseLike.limited_sequence">
    <xs:sequence>
      <xs:group ref="mei:model.addressLike_sequence"/>
      <xs:group ref="mei:model.annotLike_sequence"/>
      <xs:group ref="mei:model.biblLike_sequence"/>
      <xs:group ref="mei:model.dateLike_sequence"/>
      <xs:group ref="mei:model.editorialLike_sequence"/>
      <xs:group ref="mei:model.identifierLike_sequence"/>
      <xs:group ref="mei:model.lbLike_sequence"/>
      <xs:group ref="mei:model.measurementLike_sequence"/>
      <xs:group ref="mei:model.nameLike_sequence"/>
      <xs:group ref="mei:model.rendLike_sequence"/>
      <xs:group ref="mei:model.titleLike_sequence"/>
      <xs:group ref="mei:model.figureLike_sequence"/>
      <xs:group ref="mei:model.addressPart_sequence"/>
      <xs:group ref="mei:model.nameLike.label_sequence"/>
      <xs:group ref="mei:model.locrefLike_sequence"/>
      <xs:element ref="mei:symbol"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.textphraseLike.limited_sequenceOptional">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.addressLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.annotLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.biblLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.dateLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.editorialLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.identifierLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.lbLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.measurementLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.nameLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.rendLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.titleLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.figureLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.addressPart_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.nameLike.label_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.locrefLike_sequenceOptional"/>
      <xs:element minOccurs="0" ref="mei:symbol"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.textphraseLike.limited_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.addressLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.annotLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.biblLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.dateLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.editorialLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.identifierLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.lbLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.measurementLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.nameLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.rendLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.titleLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.figureLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.addressPart_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.nameLike.label_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.locrefLike_sequenceOptionalRepeatable"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:symbol"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.textphraseLike.limited_sequenceRepeatable">
    <xs:sequence>
      <xs:group maxOccurs="unbounded" ref="mei:model.addressLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.annotLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.biblLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.dateLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.editorialLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.identifierLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.lbLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.measurementLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.nameLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.rendLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.titleLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.figureLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.addressPart_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.nameLike.label_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.locrefLike_sequenceRepeatable"/>
      <xs:element maxOccurs="unbounded" ref="mei:symbol"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.titleLike">
    <xs:sequence>
      <xs:element ref="mei:title"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.titleLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:title"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.titleLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:title"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.titleLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:title"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.titleLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:title"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.titleLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:title"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.titlePagePart">
    <xs:choice>
      <xs:group ref="mei:model.dateLike"/>
      <xs:group ref="mei:model.respLikePart"/>
      <xs:group ref="mei:model.titleLike"/>
      <xs:element ref="mei:imprint"/>
      <xs:element ref="mei:series"/>
      <xs:element ref="mei:byline"/>
    </xs:choice>
  </xs:group>
  <xs:element name="accid">
    <xs:annotation>
      <xs:documentation>(accidental) – Records a temporary alteration to the pitch of a note.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.accid.log.attributes"/>
      <xs:attributeGroup ref="mei:att.accid.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.accid.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.accid.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="actor">
    <xs:annotation>
      <xs:documentation>Name of an actor appearing within a cast list.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="address">
    <xs:annotation>
      <xs:documentation>Contains a postal address, for example of a publisher, an organization, or an individual.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice>
        <xs:element maxOccurs="unbounded" ref="mei:addrLine"/>
        <xs:group maxOccurs="unbounded" ref="mei:model.addressPart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="addrLine">
    <xs:annotation>
      <xs:documentation>(address line) – Single line of a postal address.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="annot">
    <xs:annotation>
      <xs:documentation>(annotation) – Provides a short statement explaining the text or indicating the basis for an assertion.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.headLike"/>
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.source.attributes"/>
      <xs:attributeGroup ref="mei:att.annot.log.attributes"/>
      <xs:attributeGroup ref="mei:att.annot.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.annot.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.plist.attributes"/>
      <xs:attributeGroup ref="mei:att.responsibility.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="arranger">
    <xs:annotation>
      <xs:documentation>A person or organization who transcribes a musical composition, usually for a different medium from that of the original; in an arrangement the musical substance remains essentially unchanged.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="artic">
    <xs:annotation>
      <xs:documentation>(articulation) – An indication of how to play a note or chord.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.artic.log.attributes"/>
      <xs:attributeGroup ref="mei:att.artic.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.artic.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.artic.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="author">
    <xs:annotation>
      <xs:documentation>The name of the creator of the intellectual content of a non-musical, literary work.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="barLine">
    <xs:annotation>
      <xs:documentation>Vertical line drawn through one or more staves that divides musical notation into metrical units.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.barLine.log.attributes"/>
      <xs:attributeGroup ref="mei:att.barLine.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.barLine.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.barLine.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="bibl">
    <xs:annotation>
      <xs:documentation>(bibliographic reference) – Provides a loosely-structured bibliographic citation in which the sub-components may or may not be explicitly marked.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.biblPart"/>
        <xs:group ref="mei:model.imprintPart"/>
        <xs:group ref="mei:model.textphraseLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="biblList">
    <xs:annotation>
      <xs:documentation>List of bibliographic references.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:sequence>
            <xs:group minOccurs="0" ref="mei:model.labelLike"/>
            <xs:group ref="mei:model.biblLike"/>
          </xs:sequence>
          <xs:element ref="mei:biblList"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="biblScope">
    <xs:annotation>
      <xs:documentation>(scope of citation) – Defines the scope of a bibliographic reference, for example as a list of page numbers, or a named subdivision of a larger work.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="body">
    <xs:annotation>
      <xs:documentation>Contains the whole of a single musical text, excluding any front or back matter.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.mdivLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="caption">
    <xs:annotation>
      <xs:documentation>A label which accompanies an illustration or a table.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="castGrp">
    <xs:annotation>
      <xs:documentation>(cast group) – Groups one or more individual castItem elements within a cast list.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice maxOccurs="unbounded">
        <xs:element ref="mei:castItem"/>
        <xs:element ref="mei:castGrp"/>
        <xs:element ref="mei:roleDesc"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="castItem">
    <xs:annotation>
      <xs:documentation>Contains a single entry within a cast list, describing either a single role or a list of non-speaking roles.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="mei:role"/>
        <xs:element ref="mei:roleDesc"/>
        <xs:element ref="mei:actor"/>
        <xs:element ref="mei:perfRes"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="castList">
    <xs:annotation>
      <xs:documentation>Contains a single cast list or dramatis personae.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice maxOccurs="unbounded">
          <xs:element ref="mei:castItem"/>
          <xs:element ref="mei:castGrp"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="chord">
    <xs:annotation>
      <xs:documentation>A simultaneous sounding of two or more notes in the same layer *with the same duration*.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.chordPart"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.chord.log.attributes"/>
      <xs:attributeGroup ref="mei:att.chord.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.chord.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.chord.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="clef">
    <xs:annotation>
      <xs:documentation>Indication of the exact location of a particular note on the staff and, therefore, the other notes as well.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.event.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.clef.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.clef.log.attributes"/>
      <xs:attributeGroup ref="mei:att.clef.vis.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="clefGrp">
    <xs:annotation>
      <xs:documentation>(clef group) – A set of simultaneously-occurring clefs.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="mei:clef"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.event.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.clefGrp.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="composer">
    <xs:annotation>
      <xs:documentation>The name of the creator of the intellectual content of a musical work.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="creation">
    <xs:annotation>
      <xs:documentation>Non-bibliographic details of the creation of an intellectual entity, in narrative form, such as the date, place, and circumstances of its composition. More detailed information may be captured within the history element.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="mei:date"/>
        <xs:group ref="mei:model.nameLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="custos">
    <xs:annotation>
      <xs:documentation>Symbol placed at the end of a line of music to indicate the first note of the next line. Sometimes called a "direct".</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.source.attributes"/>
      <xs:attributeGroup ref="mei:att.custos.log.attributes"/>
      <xs:attributeGroup ref="mei:att.custos.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.custos.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="date">
    <xs:annotation>
      <xs:documentation>A string identifying a point in time or the time period between two such points.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.calendared.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.datable.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="depth">
    <xs:annotation>
      <xs:documentation>Description of a measurement taken through a three-dimensional object.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.quantity.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="desc">
    <xs:annotation>
      <xs:documentation>(description) – Container for text that briefly describes the feature to which it is attached, including its intended usage, purpose, or application as appropriate.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.source.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="dir">
    <xs:annotation>
      <xs:documentation>(directive) – An instruction expressed as a combination of text and symbols — such as segno and coda symbols, fermatas over a bar line, etc., typically above, below, or between staves, but not on the staff — that is not encoded elsewhere in more specific elements, like &lt;tempo&gt; or &lt;dynam&gt;.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.dir.log.attributes"/>
      <xs:attributeGroup ref="mei:att.dir.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.dir.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.dir.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="distributor">
    <xs:annotation>
      <xs:documentation>Person or agency, other than a publisher, from which access (including electronic access) to a bibliographic entity may be obtained.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="div">
    <xs:annotation>
      <xs:documentation>(division) – Major structural division of text, such as a preface, chapter or section.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.headLike"/>
          <xs:group ref="mei:model.milestoneLike.text"/>
        </xs:choice>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
          <xs:choice>
            <xs:group ref="mei:model.divLike"/>
            <xs:group ref="mei:model.textcomponentLike"/>
          </xs:choice>
          <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.milestoneLike.text"/>
        </xs:sequence>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="type">
        <xs:annotation>
          <xs:documentation>Characterizes the element in some sense, using any convenient classification scheme or typology.
Suggested values include: 1] abstract; 2] ack; 3] appendix; 4] bibliography; 5] colophon; 6] contents; 7] dedication; 8] frontispiece; 9] glossary; 10] half-title; 11] index; 12] annotations; 13] preface</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:union memberTypes="xs:NMTOKEN">
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="abstract">
                  <xs:annotation>
                    <xs:documentation>A summary of the content of a text as continuous prose.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="ack">
                  <xs:annotation>
                    <xs:documentation>A formal declaration of acknowledgement by the author in which persons and institutions are thanked for their part in the creation of a text.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="appendix">
                  <xs:annotation>
                    <xs:documentation>An ancillary self-contained section of a work, often providing additional but in some sense extra-canonical text.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="bibliography">
                  <xs:annotation>
                    <xs:documentation>A list of bibliographic citations.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="colophon">
                  <xs:annotation>
                    <xs:documentation>A statement appearing at the end of a book describing the conditions of its physical production.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="contents">
                  <xs:annotation>
                    <xs:documentation>A table of contents, specifying the structure of a work and listing its constituents. The list element should be used to mark its structure.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="dedication">
                  <xs:annotation>
                    <xs:documentation>A formal offering or dedication of a text to one or more persons or institutions by the author.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="frontispiece">
                  <xs:annotation>
                    <xs:documentation>A pictorial frontispiece, possibly including some text.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="glossary">
                  <xs:annotation>
                    <xs:documentation>A list of terms associated with definition texts (‘glosses’).</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="half-title">
                  <xs:annotation>
                    <xs:documentation>A page containing only the title of a book — as opposed to the title page, which also lists subtitle, author, imprint and similar data.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="index">
                  <xs:annotation>
                    <xs:documentation>Any form of index to the work.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="annotations">
                  <xs:annotation>
                    <xs:documentation>A section in which annotations on the text are gathered together.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="preface">
                  <xs:annotation>
                    <xs:documentation>A foreword or preface addressed to the reader in which the author or publisher explains the content, purpose, or origin of the text.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="subtype" type="xs:NMTOKEN">
        <xs:annotation>
          <xs:documentation>Provide any sub-classification for the element, additional to that given by its type attribute.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="dot">
    <xs:annotation>
      <xs:documentation>Dot of augmentation or division.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.dot.log.attributes"/>
      <xs:attributeGroup ref="mei:att.dot.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.dot.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="dynam">
    <xs:annotation>
      <xs:documentation>(dynamic) – Indication of the volume of a note, phrase, or section of music.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.dynam.log.attributes"/>
      <xs:attributeGroup ref="mei:att.dynam.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.dynam.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.dynam.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="edition">
    <xs:annotation>
      <xs:documentation>(edition designation) – A word or text phrase that indicates a difference in either content or form between the item being described and a related item previously issued by the same publisher/distributor (e.g. 2nd edition, version 2.0, etc.), or simultaneously issued by either the same publisher/distributor or another publisher/distributor (e.g. large print edition, British edition, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="editor">
    <xs:annotation>
      <xs:documentation>The name of the individual(s), institution(s) or organization(s) acting in an editorial capacity.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="ending">
    <xs:annotation>
      <xs:documentation>Alternative ending for a repeated passage of music; i.e., prima volta, seconda volta, etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:expansion"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.appLike"/>
          <xs:group ref="mei:model.divLike"/>
          <xs:group ref="mei:model.milestoneLike.music"/>
          <xs:group ref="mei:model.annotLike"/>
          <xs:group ref="mei:model.graphicprimitiveLike"/>
          <xs:group ref="mei:model.editLike"/>
          <xs:group ref="mei:model.transcriptionLike"/>
          <xs:group ref="mei:model.sectionPart"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.ending.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="event">
    <xs:annotation>
      <xs:documentation>Contains a free-text event description.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice>
          <xs:choice minOccurs="0" maxOccurs="unbounded">
            <xs:group ref="mei:model.eventPart"/>
            <xs:element ref="mei:castList"/>
            <xs:element ref="mei:eventList"/>
          </xs:choice>
          <xs:choice minOccurs="0" maxOccurs="unbounded">
            <xs:group ref="mei:model.pLike"/>
            <xs:group ref="mei:model.tableLike"/>
            <xs:element ref="mei:list"/>
          </xs:choice>
        </xs:choice>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:biblList"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.calendared.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.datable.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="eventList">
    <xs:annotation>
      <xs:documentation>Contains historical information given as a sequence of significant past events.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
          <xs:choice minOccurs="0">
            <xs:element ref="mei:name"/>
            <xs:group ref="mei:model.addressLike"/>
            <xs:group ref="mei:model.dateLike"/>
            <xs:group ref="mei:model.nameLike.agent"/>
            <xs:group ref="mei:model.nameLike.geogName"/>
          </xs:choice>
          <xs:choice>
            <xs:element ref="mei:event"/>
            <xs:element ref="mei:eventList"/>
          </xs:choice>
        </xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:biblList"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="expansion">
    <xs:annotation>
      <xs:documentation>Indicates how a section may be programmatically expanded into its 'through-composed' form.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.plist.attributes"/>
      <xs:attributeGroup ref="mei:att.source.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="extent">
    <xs:annotation>
      <xs:documentation>Used to express size in terms other than physical dimensions, such as number of pages, number of records in file, number of bytes, performance duration for music, audio recordings and visual projections, etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="funder">
    <xs:annotation>
      <xs:documentation>Names of individuals, institutions, or organizations responsible for funding. Funders provide financial support for a project; they are distinct from sponsors, who provide intellectual support and authority.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="genre">
    <xs:annotation>
      <xs:documentation>Term or terms that designate a category characterizing a particular style, form, or content.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="group">
    <xs:annotation>
      <xs:documentation>Contains a composite musical text, grouping together a sequence of distinct musical texts (or groups of such musical texts) which are regarded as a unit for some purpose, for example, the collected works of a composer.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:choice>
          <xs:element ref="mei:music"/>
          <xs:element ref="mei:group"/>
        </xs:choice>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element ref="mei:music"/>
          <xs:element ref="mei:group"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="grpSym">
    <xs:annotation>
      <xs:documentation>(group symbol) – A brace or bracket used to group two or more staves of a score or part.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.labelLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.grpSym.log.attributes"/>
      <xs:attributeGroup ref="mei:att.grpSym.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.grpSym.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="head">
    <xs:annotation>
      <xs:documentation>(heading) – Contains any heading, for example, the title of a section of text, or the heading of a list.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="height">
    <xs:annotation>
      <xs:documentation>Description of the vertical size of an object.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.quantity.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="identifier">
    <xs:annotation>
      <xs:documentation>An alpha-numeric string that establishes the identity of the described material.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="imprint">
    <xs:annotation>
      <xs:documentation>Information relating to the publication or distribution of a bibliographic item.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.imprintPart"/>
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:element ref="mei:respStmt"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="incip">
    <xs:annotation>
      <xs:documentation>(incipit) – The opening music and/or words of a composition.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:element minOccurs="0" ref="mei:tempo"/>
        <xs:element minOccurs="0" ref="mei:role"/>
        <xs:choice minOccurs="0">
          <xs:element ref="mei:clef"/>
          <xs:element ref="mei:clefGrp"/>
        </xs:choice>
        <xs:choice minOccurs="0">
          <xs:element ref="mei:perfRes"/>
          <xs:element ref="mei:perfResList"/>
        </xs:choice>
        <xs:element minOccurs="0" ref="mei:key"/>
        <xs:element minOccurs="0" ref="mei:meter"/>
        <xs:element minOccurs="0" ref="mei:mensuration"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element ref="mei:incipCode"/>
          <xs:element ref="mei:incipText"/>
          <xs:group ref="mei:model.scoreLike"/>
          <xs:group ref="mei:model.graphicLike"/>
          <xs:element ref="mei:annot"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="keyAccid">
    <xs:annotation>
      <xs:documentation>(key accidental) – Accidental in a key signature.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.keyAccid.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.keyAccid.log.attributes"/>
      <xs:attributeGroup ref="mei:att.keyAccid.vis.attributes"/>
      <xs:attribute name="form">
        <xs:annotation>
          <xs:documentation>Specifies whether enharmonic (written) values or implicit ("perform-able") values are allowed.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="implicit">
              <xs:annotation>
                <xs:documentation>Only performed values (sharp, flat, natural) allowed.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="explicit">
              <xs:annotation>
                <xs:documentation>All enharmonic (written) values allowed.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="keySig">
    <xs:annotation>
      <xs:documentation>(key signature) – Written key signature.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.keyAccidLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.keySig.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.keySig.log.attributes"/>
      <xs:attributeGroup ref="mei:att.keySig.vis.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="label">
    <xs:annotation>
      <xs:documentation>A container for text that identifies the feature to which it is attached.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.source.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="layer">
    <xs:annotation>
      <xs:documentation>An independent stream of events on a staff.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.milestoneLike.music"/>
        <xs:group ref="mei:model.annotLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.layerPart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.commonPart.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.layer.log.attributes"/>
      <xs:attributeGroup ref="mei:att.layer.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.layer.anl.attributes"/>
      <xs:attribute name="n" type="xs:nonNegativeInteger">
        <xs:annotation>
          <xs:documentation>A non-negative integer value functioning as a "name".</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="layerDef">
    <xs:annotation>
      <xs:documentation>(layer definition) – Container for layer meta-information.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.labelLike"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.instrDefLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.commonPart.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.layerDef.log.attributes"/>
      <xs:attributeGroup ref="mei:att.layerDef.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.layerDef.ges.attributes"/>
      <xs:attribute name="n" type="xs:nonNegativeInteger">
        <xs:annotation>
          <xs:documentation>A non-negative integer value functioning as a "name".</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="lb">
    <xs:annotation>
      <xs:documentation>(line break) – An empty formatting element that forces text to begin on a new line.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.source.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="func">
        <xs:annotation>
          <xs:documentation>States whether the line break follows a single line or a line group.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="line">
              <xs:annotation>
                <xs:documentation/>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="group">
              <xs:annotation>
                <xs:documentation/>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="librettist">
    <xs:annotation>
      <xs:documentation>Person or organization who is a writer of the text of an opera, oratorio, etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="lyricist">
    <xs:annotation>
      <xs:documentation>Person or organization who is a writer of the text of a song.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mdiv">
    <xs:annotation>
      <xs:documentation>(musical division) – Contains a subdivision of the body of a musical text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice>
        <xs:sequence>
          <xs:group minOccurs="0" ref="mei:model.scoreLike"/>
          <xs:group minOccurs="0" ref="mei:model.partsLike"/>
        </xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.mdivLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mei">
    <xs:annotation>
      <xs:documentation>Contains a single MEI-conformant document, consisting of an MEI header and a musical text, either in isolation or as part of an meiCorpus element.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="mei:meiHead"/>
        <xs:element ref="mei:music"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.meiversion.attributes"/>
      <xs:attributeGroup ref="mei:att.id.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="music">
    <xs:annotation>
      <xs:documentation>Contains a single musical text of any kind, whether unitary or composite, for example, an etude, opera, song cycle, symphony, or anthology of piano solos.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.resourceLike"/>
        <xs:group ref="mei:macro.musicPart"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.vectorLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.meiversion.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="name">
    <xs:annotation>
      <xs:documentation>Proper noun or noun phrase.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attribute name="type">
        <xs:annotation>
          <xs:documentation>Characterizes the element in some sense, using any convenient classification scheme or typology.
Suggested values include: 1] person; 2] corporation; 3] location; 4] process; 5] style; 6] time</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:union memberTypes="xs:NMTOKEN">
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="person">
                  <xs:annotation>
                    <xs:documentation>A personal name.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="corporation">
                  <xs:annotation>
                    <xs:documentation>Name of a corporate body.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="location">
                  <xs:annotation>
                    <xs:documentation>Name of a location.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="process">
                  <xs:annotation>
                    <xs:documentation>Name of a process or software application.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="style">
                  <xs:annotation>
                    <xs:documentation>Name of a musical style; i.e., form, genre, technique, etc.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="time">
                  <xs:annotation>
                    <xs:documentation>Name of a period of time.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="subtype" type="xs:NMTOKEN">
        <xs:annotation>
          <xs:documentation>Provides any sub-classification for the element, additional to that given by its type attribute.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="note">
    <xs:annotation>
      <xs:documentation>A single pitched event. </xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.verseLike"/>
        <xs:group ref="mei:model.sylLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.note.log.attributes"/>
      <xs:attributeGroup ref="mei:att.note.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.note.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.note.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.grammar.analysis.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="num">
    <xs:annotation>
      <xs:documentation>(number) – Numeric information in any form.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="value" type="xs:decimal">
        <xs:annotation>
          <xs:documentation>Numeric value capturing a measurement or count. Can only be interpreted in combination with the unit attribute.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="ornam">
    <xs:annotation>
      <xs:documentation>An element indicating an ornament that is not a mordent, turn, or trill. </xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.ornam.log.attributes"/>
      <xs:attributeGroup ref="mei:att.ornam.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.ornam.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.ornam.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="p">
    <xs:annotation>
      <xs:documentation>(paragraph) – One or more text phrases that form a logical prose passage.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.paracontentPart"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="pad">
    <xs:annotation>
      <xs:documentation>(padding) – An indication of extra visual space between notational elements.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.pad.log.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="part">
    <xs:annotation>
      <xs:documentation>An alternative visual rendition of the score from the point of view of a particular performer (or group of performers).</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.milestoneLike.music"/>
        <xs:group ref="mei:model.annotLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.scorePart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.part.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="parts">
    <xs:annotation>
      <xs:documentation>Provides a container for performers' parts.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.partLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.parts.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="pb">
    <xs:annotation>
      <xs:documentation>(page break) – An empty formatting element that forces text to begin on a new page.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base="mei:macro.metaLike.page">
          <xs:attributeGroup ref="mei:att.common.attributes"/>
          <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
          <xs:attributeGroup ref="mei:att.pointing.attributes"/>
          <xs:attributeGroup ref="mei:att.source.attributes"/>
          <xs:attributeGroup ref="mei:att.typed.attributes"/>
          <xs:attributeGroup ref="mei:att.pb.anl.attributes"/>
          <xs:attributeGroup ref="mei:att.pb.vis.attributes"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="pgDesc">
    <xs:annotation>
      <xs:documentation>(page description) – Contains a brief prose description of the appearance or description of the content of a physical page.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.annotLike"/>
        <xs:group ref="mei:model.locrefLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="pgFoot">
    <xs:annotation>
      <xs:documentation>(page footer) – A running footer on the first page. Also, used to temporarily override a running footer on individual pages.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:element ref="mei:anchoredText"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="halign" type="mei:data.HORIZONTALALIGNMENT">
        <xs:annotation>
          <xs:documentation>Records horizontal alignment of the page footer.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="pgFoot2">
    <xs:annotation>
      <xs:documentation>(page footer 2) – A running footer on the pages following the first.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:element ref="mei:anchoredText"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="halign">
        <xs:annotation>
          <xs:documentation>Records horizontal alignment of the page footer. Use multiple values to capture an alternating pattern.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction>
            <xs:simpleType>
              <xs:list itemType="mei:data.HORIZONTALALIGNMENT"/>
            </xs:simpleType>
            <xs:minLength value="1"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="pgHead">
    <xs:annotation>
      <xs:documentation>(page header) – A running header on the first page. Also, used to temporarily override a running header on individual pages.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:element ref="mei:anchoredText"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="halign" type="mei:data.HORIZONTALALIGNMENT">
        <xs:annotation>
          <xs:documentation>Records horizontal alignment of the page header.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="pgHead2">
    <xs:annotation>
      <xs:documentation>(page header 2) – A running header on the pages following the first.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:element ref="mei:anchoredText"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="halign">
        <xs:annotation>
          <xs:documentation>Records horizontal alignment of the page header. Use multiple values to capture an alternating pattern.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction>
            <xs:simpleType>
              <xs:list itemType="mei:data.HORIZONTALALIGNMENT"/>
            </xs:simpleType>
            <xs:minLength value="1"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="phrase">
    <xs:annotation>
      <xs:documentation>Indication of 1) a "unified melodic idea" or 2) performance technique.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:curve"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.phrase.log.attributes"/>
      <xs:attributeGroup ref="mei:att.phrase.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.phrase.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.phrase.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="physLoc">
    <xs:annotation>
      <xs:documentation>(physical location) – Groups information about the current physical location of a bibliographic item, such as the repository in which it is located and its shelf mark(s), and its previous locations.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.repositoryLike"/>
          <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.identifierLike"/>
        </xs:sequence>
        <xs:element minOccurs="0" ref="mei:provenance"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="publisher">
    <xs:annotation>
      <xs:documentation>Name of the organization responsible for the publication of a bibliographic item.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="pubPlace">
    <xs:annotation>
      <xs:documentation>(publication place) – Name of the place where a bibliographic item was published.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="recipient">
    <xs:annotation>
      <xs:documentation>The name of the individual(s), institution(s) or organization(s) receiving correspondence.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="relatedItem">
    <xs:annotation>
      <xs:documentation>(related item) – Contains or references another bibliographic item which is related to the present one.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.biblLike"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="rel" use="required">
        <xs:annotation>
          <xs:documentation>Describes the relationship between the &lt;relatedItem&gt; and the resource described in the parent element, i.e., &lt;bibl&gt;, &lt;source&gt; or &lt;relatedItem&gt;. The values are based on MODS version 3.4. The subject of these relations is always the &lt;relatedItem&gt;, and the object is always the parent of the &lt;relatedItem&gt;. "preceding" and "succeeding" indicate temporal order.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="preceding">
              <xs:annotation>
                <xs:documentation>Predecessor of the resource.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="succeeding">
              <xs:annotation>
                <xs:documentation>Successor to the resource.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="original">
              <xs:annotation>
                <xs:documentation>Original form of the resource.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="host">
              <xs:annotation>
                <xs:documentation>Parent containing the resource.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="constituent">
              <xs:annotation>
                <xs:documentation>Intellectual or physical component of the resource.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="otherVersion">
              <xs:annotation>
                <xs:documentation>Version of the resource's intellectual content not changed enough to be a different work.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="otherFormat">
              <xs:annotation>
                <xs:documentation>Version of the resource in a different physical format.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="isReferencedBy">
              <xs:annotation>
                <xs:documentation>Published bibliographic description, review, abstract, or index of the resource's content.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="references">
              <xs:annotation>
                <xs:documentation>Cited or referred to in the resource.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="rend">
    <xs:annotation>
      <xs:documentation>(render) – A formatting element indicating special visual rendering, e.g., bold or italicized, of a text word or phrase.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.color.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.horizontalalign.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typography.attributes"/>
      <xs:attributeGroup ref="mei:att.whitespace.attributes"/>
      <xs:attribute name="altrend">
        <xs:annotation>
          <xs:documentation>Used to extend the values of the rend attribute.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction>
            <xs:simpleType>
              <xs:list itemType="xs:NMTOKEN"/>
            </xs:simpleType>
            <xs:minLength value="1"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="rend">
        <xs:annotation>
          <xs:documentation>Captures the appearance of the element's contents using MEI-defined descriptors.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction>
            <xs:simpleType>
              <xs:list itemType="mei:data.TEXTRENDITION"/>
            </xs:simpleType>
            <xs:minLength value="1"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="rotation" type="mei:data.DEGREES">
        <xs:annotation>
          <xs:documentation>A positive value for rotation rotates the text in a counter-clockwise fashion, while negative values produce clockwise rotation.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="valign">
        <xs:annotation>
          <xs:documentation>Specifies the vertical position of the element content relative to the surrounding text.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="top">
              <xs:annotation>
                <xs:documentation>Aligns the top of the content with the top of the surrounding text.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="middle">
              <xs:annotation>
                <xs:documentation>Aligns the middle of the content with the middle of the surrounding text.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="bottom">
              <xs:annotation>
                <xs:documentation>Aligns the bottom of the content with the bottom of the surrounding text.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="baseline">
              <xs:annotation>
                <xs:documentation>Aligns the baseline of the content with the baseline of the surrounding text.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="repository">
    <xs:annotation>
      <xs:documentation>Institution, agency, or individual which holds a bibliographic item.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="resp">
    <xs:annotation>
      <xs:documentation>(responsibility) – A phrase describing the nature of intellectual responsibility.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.canonical.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="respStmt">
    <xs:annotation>
      <xs:documentation>(responsibility statement) – Names one or more individuals, groups, or in rare cases, mechanical processes, responsible for creation or realization of the intellectual or artistic content.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="mei:resp"/>
        <xs:group ref="mei:model.nameLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="rest">
    <xs:annotation>
      <xs:documentation>A non-sounding event found in the source being transcribed.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="mei:dot"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.rest.log.attributes"/>
      <xs:attributeGroup ref="mei:att.rest.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.rest.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.rest.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="role">
    <xs:annotation>
      <xs:documentation>Name of a dramatic role, as given in a cast list.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="roleDesc">
    <xs:annotation>
      <xs:documentation>(role description) – Describes a character's role in a drama.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="sb">
    <xs:annotation>
      <xs:documentation>(system break) – An empty formatting element that forces musical notation to begin on a new line.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="mei:custos"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.source.attributes"/>
      <xs:attributeGroup ref="mei:att.sb.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.sb.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="score">
    <xs:annotation>
      <xs:documentation>Full score view of the musical content.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.milestoneLike.music"/>
        <xs:group ref="mei:model.annotLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.scorePart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.score.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="scoreDef">
    <xs:annotation>
      <xs:documentation>(score definition) – Container for score meta-information.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" ref="mei:model.chordTableLike"/>
        <xs:group minOccurs="0" ref="mei:model.symbolTableLike"/>
        <xs:group minOccurs="0" ref="mei:model.keySigLike"/>
        <xs:group minOccurs="0" ref="mei:model.meterSigLike"/>
        <xs:element minOccurs="0" ref="mei:pgHead"/>
        <xs:element minOccurs="0" ref="mei:pgHead2"/>
        <xs:element minOccurs="0" ref="mei:pgFoot"/>
        <xs:element minOccurs="0" ref="mei:pgFoot2"/>
        <xs:element minOccurs="0" ref="mei:instrGrp"/>
        <xs:group minOccurs="0" ref="mei:model.staffGrpLike"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:grpSym"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.scoreDef.log.attributes"/>
      <xs:attributeGroup ref="mei:att.scoreDef.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.scoreDef.ges.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="section">
    <xs:annotation>
      <xs:documentation>Segment of music data.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:expansion"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.appLike"/>
          <xs:group ref="mei:model.divLike"/>
          <xs:group ref="mei:model.milestoneLike.music"/>
          <xs:group ref="mei:model.annotLike"/>
          <xs:group ref="mei:model.graphicprimitiveLike"/>
          <xs:group ref="mei:model.editLike"/>
          <xs:group ref="mei:model.transcriptionLike"/>
          <xs:group ref="mei:model.sectionPart"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.section.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.section.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="series">
    <xs:annotation>
      <xs:documentation>Contains information about the serial publication in which a bibliographic item has appeared.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.titleLike"/>
        <xs:group ref="mei:model.locrefLike"/>
        <xs:element ref="mei:editor"/>
        <xs:element ref="mei:respStmt"/>
        <xs:element ref="mei:extent"/>
        <xs:group ref="mei:model.identifierLike"/>
        <xs:group ref="mei:model.pLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="space">
    <xs:annotation>
      <xs:documentation>A placeholder used to fill an incomplete measure, layer, etc. most often so that the combined duration of the events equals the number of beats in the measure.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.space.log.attributes"/>
      <xs:attributeGroup ref="mei:att.space.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.space.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.space.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="sponsor">
    <xs:annotation>
      <xs:documentation>Names of sponsoring individuals, organizations or institutions. Sponsors give their intellectual authority to a project; they are to be distinguished from funders, who provide the funding but do not necessarily take intellectual responsibility.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="stack">
    <xs:annotation>
      <xs:documentation>(stacked text) – An inline table with a single column.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="delim" type="xs:string">
        <xs:annotation>
          <xs:documentation>Indicates the delimiter used to mark the portions of text that are to be stacked.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="align">
        <xs:annotation>
          <xs:documentation>Specifies how the stacked text components should be aligned.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="left">
              <xs:annotation>
                <xs:documentation>Left justified.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="right">
              <xs:annotation>
                <xs:documentation>Right justified.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="center">
              <xs:annotation>
                <xs:documentation>Centered.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="rightdigit">
              <xs:annotation>
                <xs:documentation>Aligned on right-most digit.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="staff">
    <xs:annotation>
      <xs:documentation>A group of equidistant horizontal lines on which notes are placed in order to represent pitch or a grouping element for individual 'strands' of notes, rests, etc. that may or may not actually be rendered on staff lines; that is, both diastematic and non-diastematic signs.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.milestoneLike.music"/>
        <xs:group ref="mei:model.annotLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.staffPart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.commonPart.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.staff.log.attributes"/>
      <xs:attributeGroup ref="mei:att.staff.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.staff.anl.attributes"/>
      <xs:attribute name="n" type="xs:nonNegativeInteger">
        <xs:annotation>
          <xs:documentation>A non-negative integer value functioning as a "name".</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="staffDef">
    <xs:annotation>
      <xs:documentation>(staff definition) – Container for staff meta-information.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.labelLike"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.instrDefLike"/>
          <xs:group ref="mei:model.layerDefLike"/>
          <xs:group ref="mei:model.staffDefPart"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.commonPart.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.staffDef.log.attributes"/>
      <xs:attributeGroup ref="mei:att.staffDef.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.staffDef.ges.attributes"/>
      <xs:attribute name="n" type="xs:nonNegativeInteger">
        <xs:annotation>
          <xs:documentation>A non-negative integer value functioning as a "name".</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="staffGrp">
    <xs:annotation>
      <xs:documentation>(staff group) – A group of bracketed or braced staves.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:grpSym"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.labelLike"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.instrDefLike"/>
        <xs:choice maxOccurs="unbounded">
          <xs:group ref="mei:model.staffGrpLike"/>
          <xs:group ref="mei:model.staffDefLike"/>
        </xs:choice>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:grpSym"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.staffGrp.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.staffGrp.ges.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="syl">
    <xs:annotation>
      <xs:documentation>(syllable) – Individual lyric syllable.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.syl.log.attributes"/>
      <xs:attributeGroup ref="mei:att.syl.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.syl.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="tempo">
    <xs:annotation>
      <xs:documentation>Text and symbols descriptive of tempo, mood, or style, e.g., "allarg.", "a tempo", "cantabile", "Moderato", "♩=60", "Moderato ♩ =60").</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.tempo.log.attributes"/>
      <xs:attributeGroup ref="mei:att.tempo.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.tempo.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.tempo.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="textLang">
    <xs:annotation>
      <xs:documentation>(text language) – Identifies the languages and writing systems within the work described by a bibliographic description, not the language of the description.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="mainLang" type="xs:language">
        <xs:annotation>
          <xs:documentation>(main language) supplies a code which identifies the chief language used in the bibliographic work.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="otherLangs">
        <xs:annotation>
          <xs:documentation>(other languages) one or more codes identifying any other languages used in the bibliographic work.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction>
            <xs:simpleType>
              <xs:list itemType="xs:language"/>
            </xs:simpleType>
            <xs:minLength value="1"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="title">
    <xs:annotation>
      <xs:documentation>Title of a bibliographic entity.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.canonical.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.filing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="level">
        <xs:annotation>
          <xs:documentation>Indicates the bibliographic level for a title.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="a">
              <xs:annotation>
                <xs:documentation>Analyzed component, such as an article or chapter, within a larger bibliographic entity.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="m">
              <xs:annotation>
                <xs:documentation>Monograph.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="j">
              <xs:annotation>
                <xs:documentation>Journal.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="s">
              <xs:annotation>
                <xs:documentation>Series.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="u">
              <xs:annotation>
                <xs:documentation>Unpublished (including theses and dissertations unless published by a commercial press).</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="type">
        <xs:annotation>
          <xs:documentation>Characterizes the element in some sense, using any convenient classification scheme or typology.
Suggested values include: 1] main; 2] subordinate; 3] abbreviated; 4] alternative; 5] translated; 6] uniform</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:union memberTypes="xs:NMTOKEN">
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="main">
                  <xs:annotation>
                    <xs:documentation>Main title.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="subordinate">
                  <xs:annotation>
                    <xs:documentation>Subtitle or title of part.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="abbreviated">
                  <xs:annotation>
                    <xs:documentation>Abbreviated form of title.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="alternative">
                  <xs:annotation>
                    <xs:documentation>Alternate title by which the item is also known.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="translated">
                  <xs:annotation>
                    <xs:documentation>Translated form of title.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="uniform">
                  <xs:annotation>
                    <xs:documentation>Collective title.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="subtype" type="xs:NMTOKEN">
        <xs:annotation>
          <xs:documentation>Provide any sub-classification for the element, additional to that given by its type attribute.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="titlePage">
    <xs:annotation>
      <xs:documentation>Contains a transcription of the title page of a text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice maxOccurs="unbounded">
        <xs:group ref="mei:model.figureLike"/>
        <xs:group ref="mei:model.milestoneLike.text"/>
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.titlePagePart"/>
        <xs:element ref="mei:titleStmt"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="width">
    <xs:annotation>
      <xs:documentation>Description of the horizontal size of an object.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.quantity.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.regularmethod.attributes">
    <xs:attributeGroup ref="mei:att.regularmethod.attribute.method"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.regularmethod.attribute.method">
    <xs:attribute name="method">
      <xs:annotation>
        <xs:documentation>Indicates the method employed to mark corrections and normalizations.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="silent">
            <xs:annotation>
              <xs:documentation>Corrections and normalizations made silently.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="tags">
            <xs:annotation>
              <xs:documentation>Corrections and normalizations indicated using elements.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.editorialDeclPart">
    <xs:choice>
      <xs:element ref="mei:correction"/>
      <xs:element ref="mei:interpretation"/>
      <xs:element ref="mei:normalization"/>
      <xs:element ref="mei:segmentation"/>
      <xs:element ref="mei:stdVals"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventPart">
    <xs:choice>
      <xs:group ref="mei:model.addressLike"/>
      <xs:group ref="mei:model.dateLike"/>
      <xs:element ref="mei:desc"/>
      <xs:element ref="mei:name"/>
      <xs:group ref="mei:model.nameLike.agent"/>
      <xs:group ref="mei:model.nameLike.geogName"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.frontPart">
    <xs:sequence>
      <xs:element ref="mei:titlePage"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.physDescPart">
    <xs:choice>
      <xs:element ref="mei:extent"/>
      <xs:group ref="mei:model.frontPart"/>
      <xs:element ref="mei:captureMode"/>
      <xs:element ref="mei:carrierForm"/>
      <xs:element ref="mei:condition"/>
      <xs:element ref="mei:dimensions"/>
      <xs:element ref="mei:exhibHist"/>
      <xs:element ref="mei:fileChar"/>
      <xs:element ref="mei:fingerprint"/>
      <xs:element ref="mei:handList"/>
      <xs:element ref="mei:inscription"/>
      <xs:element ref="mei:perfDuration"/>
      <xs:element ref="mei:physMedium"/>
      <xs:element ref="mei:plateNum"/>
      <xs:element ref="mei:playingSpeed"/>
      <xs:element ref="mei:scoreFormat"/>
      <xs:element ref="mei:soundChan"/>
      <xs:element ref="mei:specRepro"/>
      <xs:element ref="mei:trackConfig"/>
      <xs:element ref="mei:treatHist"/>
      <xs:element ref="mei:treatSched"/>
      <xs:element ref="mei:watermark"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.pubStmtPart">
    <xs:choice>
      <xs:group ref="mei:model.addressLike"/>
      <xs:group ref="mei:model.dateLike"/>
      <xs:group ref="mei:model.identifierLike"/>
      <xs:element ref="mei:distributor"/>
      <xs:element ref="mei:publisher"/>
      <xs:element ref="mei:pubPlace"/>
      <xs:element ref="mei:respStmt"/>
      <xs:element ref="mei:availability"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.workIdent">
    <xs:choice>
      <xs:group ref="mei:model.incipLike"/>
      <xs:element ref="mei:tempo"/>
      <xs:element ref="mei:key"/>
      <xs:element ref="mei:mensuration"/>
      <xs:element ref="mei:meter"/>
    </xs:choice>
  </xs:group>
  <xs:element name="accessRestrict">
    <xs:annotation>
      <xs:documentation>(access restriction) – Describes the conditions that affect the accessibility of material.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="altId">
    <xs:annotation>
      <xs:documentation>(alternative identifier) – May contain a bibliographic identifier that does not fit within the meiHead element's id attribute, for example because the identifier does not fit the definition of an XML id or because multiple identifiers are needed.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.lbLike"/>
        <xs:group ref="mei:model.rendLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="appInfo">
    <xs:annotation>
      <xs:documentation>(application information) – Groups information about applications which have acted upon the MEI file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:application"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="application">
    <xs:annotation>
      <xs:documentation>Provides information about an application which has acted upon the current document.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="mei:name"/>
        <xs:choice>
          <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.locrefLike"/>
          <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.pLike"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.datable.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="version" type="xs:NMTOKEN">
        <xs:annotation>
          <xs:documentation>Supplies a version number for an application, independent of its identifier or display name.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="audience">
    <xs:annotation>
      <xs:documentation>Defines the class of user for which the work is intended, as defined by age group (e.g., children, young adults, adults, etc.), educational level (e.g., primary, secondary, etc.), or other categorization.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="availability">
    <xs:annotation>
      <xs:documentation>Groups elements that describe the availability of and access to a bibliographic item, including an MEI-encoded document.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:complexContent>
        <xs:extension base="mei:macro.availabilityPart">
          <xs:attributeGroup ref="mei:att.bibl.attributes"/>
          <xs:attributeGroup ref="mei:att.common.attributes"/>
          <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>
  </xs:element>
  <xs:element name="byline">
    <xs:annotation>
      <xs:documentation>Contains the primary statement of responsibility given for a work on its title page.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.respLikePart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="captureMode">
    <xs:annotation>
      <xs:documentation>(capture mode) – The means used to record notation, sound, or images in the production of a source/manifestation (e.g., analogue, acoustic, electric, digital, optical etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="carrierForm">
    <xs:annotation>
      <xs:documentation>(carrier form) – The specific class of material to which the physical carrier of the source/manifestation belongs (e.g., sound cassette, videodisc, microfilm cartridge, transparency, etc.). The carrier for a manifestation comprising multiple physical components may include more than one form (e.g., a filmstrip with an accompanying booklet, a separate sound disc carrying the sound track for a film, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="change">
    <xs:annotation>
      <xs:documentation>Individual change within the revision description.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="mei:respStmt"/>
        <xs:element ref="mei:changeDesc"/>
        <xs:group minOccurs="0" ref="mei:model.dateLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datable.attributes"/>
      <xs:attributeGroup ref="mei:att.responsibility.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="changeDesc">
    <xs:annotation>
      <xs:documentation>(change description) – Description of a revision of the MEI file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="classCode">
    <xs:annotation>
      <xs:documentation>(classification code) – Holds a citation to the source of controlled-vocabulary terms used in the &lt;termList&gt; element; for example, Library of Congress Subject Headings (LCSH), Library of Congress Classification (LCC), Library of Congress Name Authority File (LCNAF), or other thesaurus or ontology.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.lbLike"/>
        <xs:group ref="mei:model.rendLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="classification">
    <xs:annotation>
      <xs:documentation>Groups information which describes the nature or topic of an entity.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice maxOccurs="unbounded">
          <xs:element ref="mei:classCode"/>
          <xs:element ref="mei:termList"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="condition">
    <xs:annotation>
      <xs:documentation>The physical condition of an item, particularly any variances between the physical make-up of the item and that of other copies of the same item (e.g., missing pages or plates, brittleness, faded images, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="contentItem">
    <xs:annotation>
      <xs:documentation>Contains a single entry within a content description element.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="contents">
    <xs:annotation>
      <xs:documentation>Description of the material contained within a resource.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice>
          <xs:group minOccurs="0" ref="mei:model.pLike"/>
          <xs:sequence maxOccurs="unbounded">
            <xs:group minOccurs="0" ref="mei:model.labelLike"/>
            <xs:element ref="mei:contentItem"/>
          </xs:sequence>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="context">
    <xs:annotation>
      <xs:documentation>The historical, social, intellectual, artistic, or other context within which the work was originally conceived (e.g., the 17th century restoration of the monarchy in England, the aesthetic movement of the late 19th century, etc.) or the historical, social, intellectual, artistic, or other context within which the expression was realized.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="correction">
    <xs:annotation>
      <xs:documentation>States how and under what circumstances corrections have been made in the text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.regularmethod.attributes"/>
      <xs:attribute name="corrlevel">
        <xs:annotation>
          <xs:documentation>Indicates the degree of correction applied to the text.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="high">
              <xs:annotation>
                <xs:documentation>The text has been thoroughly checked and proofread.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="medium">
              <xs:annotation>
                <xs:documentation>The text has been checked at least once.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="low">
              <xs:annotation>
                <xs:documentation>The text has not been checked.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="unknown">
              <xs:annotation>
                <xs:documentation>The correction status of the text is unknown.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="dimensions">
    <xs:annotation>
      <xs:documentation>Information about the physical size of a bibliographic source; usually includes numerical data.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.dimLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="editionStmt">
    <xs:annotation>
      <xs:documentation>(edition statement) – Container for meta-data pertaining to a particular edition of the material being described.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence maxOccurs="unbounded">
        <xs:group ref="mei:model.editionLike"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:respStmt"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="editorialDecl">
    <xs:annotation>
      <xs:documentation>(editorial declaration) – Used to provide details of editorial principles and practices applied during the encoding of musical text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice>
          <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
          <xs:sequence>
            <xs:group maxOccurs="unbounded" ref="mei:model.editorialDeclPart"/>
            <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.pLike"/>
          </xs:sequence>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="encodingDesc">
    <xs:annotation>
      <xs:documentation>(encoding description) – Documents the relationship between an electronic file and the source or sources from which it was derived as well as applications used in the encoding/editing process.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="mei:appInfo"/>
        <xs:element minOccurs="0" ref="mei:editorialDecl"/>
        <xs:element minOccurs="0" ref="mei:projectDesc"/>
        <xs:element minOccurs="0" ref="mei:samplingDecl"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="exhibHist">
    <xs:annotation>
      <xs:documentation>(exhibition history) – A record of public exhibitions, including dates, venues, etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="extMeta">
    <xs:annotation>
      <xs:documentation>(extended metadata) – Provides a container element for non-MEI metadata formats.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:macro.anyXML"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.whitespace.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="fileChar">
    <xs:annotation>
      <xs:documentation>(file characteristics) – Standards or schemes used to encode the file (e.g., ASCII, SGML, etc.), physical characteristics of the file (e.g., recording density, parity, blocking, etc.), and other characteristics that have a bearing on how the file can be processed.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="fileDesc">
    <xs:annotation>
      <xs:documentation>(file description) – Contains a full bibliographic description of the MEI file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="mei:titleStmt"/>
        <xs:element minOccurs="0" ref="mei:editionStmt"/>
        <xs:element minOccurs="0" ref="mei:extent"/>
        <xs:element ref="mei:pubStmt"/>
        <xs:element minOccurs="0" ref="mei:seriesStmt"/>
        <xs:element minOccurs="0" ref="mei:notesStmt"/>
        <xs:element minOccurs="0" ref="mei:sourceDesc"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="fingerprint">
    <xs:annotation>
      <xs:documentation>Contains a string that uniquely identifies an item, such as those constructed by combining groups of characters transcribed from specified pages of a printed item or a file's checksum.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="hand">
    <xs:annotation>
      <xs:documentation>Defines a distinct scribe or handwriting style.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.medium.attributes"/>
      <xs:attributeGroup ref="mei:att.responsibility.attributes"/>
      <xs:attribute name="initial" type="mei:data.BOOLEAN">
        <xs:annotation>
          <xs:documentation>Marks this hand as the first one of the document.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="handList">
    <xs:annotation>
      <xs:documentation>Container for one or more hand elements.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
          <xs:group minOccurs="0" ref="mei:model.labelLike"/>
          <xs:element ref="mei:hand"/>
        </xs:sequence>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="history">
    <xs:annotation>
      <xs:documentation>Provides a container for information about the history of a resource. To facilitate efficient data interchange, basic information about the circumstances surrounding the creation of bibliographic resources should be recorded within the creation element.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.divLike"/>
          <xs:group ref="mei:model.textcomponentLike"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="incipCode">
    <xs:annotation>
      <xs:documentation>Incipit coded in a non-XML, plain text format, such as Plaine &amp; Easie Code.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.internetmedia.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.whitespace.attributes"/>
      <xs:attribute name="form">
        <xs:annotation>
          <xs:documentation>Form of the encoded incipit.
Suggested values include: 1] plaineAndEasie; 2] humdrumKern; 3] parsons</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:union memberTypes="xs:NMTOKEN">
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="plaineAndEasie">
                  <xs:annotation>
                    <xs:documentation>Plaine &amp; Easie Code.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="humdrumKern">
                  <xs:annotation>
                    <xs:documentation>Humdrum Kern format.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="parsons">
                  <xs:annotation>
                    <xs:documentation>Parsons code.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="incipText">
    <xs:annotation>
      <xs:documentation>Opening words of a musical composition.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.pLike"/>
        <xs:group ref="mei:model.lgLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.internetmedia.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="inscription">
    <xs:annotation>
      <xs:documentation>An inscription added to an item, such as a bookplate, a note designating the item as a gift, and/or the author's signature.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="interpretation">
    <xs:annotation>
      <xs:documentation>Describes the scope of any analytic or interpretive information added to the transcription of the music.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="key">
    <xs:annotation>
      <xs:documentation>Key captures information about tonal center and mode.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.keySig.log.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="language">
    <xs:annotation>
      <xs:documentation>Description of a language used in the document.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="langUsage">
    <xs:annotation>
      <xs:documentation>(language usage) – Groups elements describing the languages, sub-languages, dialects, etc., represented within the encoded resource.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:element maxOccurs="unbounded" ref="mei:language"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="meiHead">
    <xs:annotation>
      <xs:documentation>(MEI header) – Supplies the descriptive and declarative metadata prefixed to every MEI-conformant text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:altId"/>
        <xs:element ref="mei:fileDesc"/>
        <xs:element minOccurs="0" ref="mei:encodingDesc"/>
        <xs:element minOccurs="0" ref="mei:workDesc"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:extMeta"/>
        <xs:element minOccurs="0" ref="mei:revisionDesc"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.meiversion.attributes"/>
      <xs:attribute name="type">
        <xs:annotation>
          <xs:documentation>Specifies the kind of document to which the header is attached, for example whether it is a corpus or individual text.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="music">
              <xs:annotation>
                <xs:documentation>Header is attached to a music document.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="corpus">
              <xs:annotation>
                <xs:documentation>Header is attached to a corpus.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="mensuration">
    <xs:annotation>
      <xs:documentation>Captures information about mensuration within bibliographic descriptions.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.mensur.log.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="meter">
    <xs:annotation>
      <xs:documentation>Captures information about the time signature within bibliographic descriptions.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.meterSig.log.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="normalization">
    <xs:annotation>
      <xs:documentation>Indicates the extent of normalization or regularization of the original source carried out in converting it to electronic form.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.regularmethod.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="notesStmt">
    <xs:annotation>
      <xs:documentation>(notes statement)– Collects any notes providing information about a text additional to that recorded in other parts of the bibliographic description.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:group maxOccurs="unbounded" ref="mei:model.annotLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="otherChar">
    <xs:annotation>
      <xs:documentation>(other distinguishing characteristic) – Any characteristic that serves to differentiate a work or expression from another.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="perfDuration">
    <xs:annotation>
      <xs:documentation>(performance duration) – Used to express the duration of performance of printed or manuscript music or the playing time for a sound recording, videorecording, etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="isodur" type="xs:duration">
        <xs:annotation>
          <xs:documentation>Holds a W3C duration value, e.g., "PT2H34M45.67S".</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="perfMedium">
    <xs:annotation>
      <xs:documentation>(performance medium) – Indicates the number and character of the performing forces used in a musical composition.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:element minOccurs="0" ref="mei:castList"/>
        <xs:element minOccurs="0" ref="mei:perfResList"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.annotLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="perfRes">
    <xs:annotation>
      <xs:documentation>(performance resource) – Name of an instrument on which a performer plays, a performer's voice range, or a standard performing ensemble designation.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:perfRes"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.canonical.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="count" type="xs:positiveInteger">
        <xs:annotation>
          <xs:documentation>Indicates the number of performers.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="solo" type="mei:data.BOOLEAN">
        <xs:annotation>
          <xs:documentation>Marks this instrument or vocal part as a soloist. Do not use this attribute for a solo instrument which is not accompanied.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="perfResList">
    <xs:annotation>
      <xs:documentation>Several instrumental or vocal resources treated as a group.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element ref="mei:perfRes"/>
          <xs:element ref="mei:perfResList"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.canonical.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="count" type="xs:positiveInteger">
        <xs:annotation>
          <xs:documentation>Indicates the number of performers.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="physDesc">
    <xs:annotation>
      <xs:documentation>(physical description) – Container for information about the appearance, construction, or handling of physical materials, such as their dimension, quantity, color, style, and technique of creation.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.pLike"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.physDescPart"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="physMedium">
    <xs:annotation>
      <xs:documentation>(physical medium) – Records the physical materials used in the source, such as ink and paper.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="plateNum">
    <xs:annotation>
      <xs:documentation>(plate number) – Designation assigned to a resource by a music publisher, usually printed at the bottom of each page, and sometimes appearing also on the title page.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="playingSpeed">
    <xs:annotation>
      <xs:documentation>Playing speed for a sound recording is the speed at which the carrier must be operated to produce the sound intended (e.g., 33 1/3 rpm, 19 cm/s, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="price">
    <xs:annotation>
      <xs:documentation>The cost of access to a bibliographic item.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="amount">
        <xs:annotation>
          <xs:documentation>Numeric value capturing a cost. Can only be interpreted in combination with the currency attribute.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:decimal">
            <xs:pattern value="[0-9]+\.[0-9]{2}"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="currency" type="xs:NMTOKEN">
        <xs:annotation>
          <xs:documentation>Monetary unit.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="projectDesc">
    <xs:annotation>
      <xs:documentation>(project description) – Project-level meta-data describing the aim or purpose for which the electronic file was encoded, funding agencies, etc. together with any other relevant information concerning the process by which it was assembled or collected.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="provenance">
    <xs:annotation>
      <xs:documentation>The record of ownership or custodianship of an item.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice>
        <xs:element minOccurs="0" ref="mei:eventList"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="pubStmt">
    <xs:annotation>
      <xs:documentation>(publication statement) – Container for information regarding the publication or distribution of a bibliographic item, including the publisher's name and address, the date of publication, and other relevant details.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice>
        <xs:element minOccurs="0" ref="mei:unpub"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.pubStmtPart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="revisionDesc">
    <xs:annotation>
      <xs:documentation>(revision description) – Container for information about alterations that have been made to an MEI file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="mei:change"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="samplingDecl">
    <xs:annotation>
      <xs:documentation>(sampling declaration) – Contains a prose description of the rationale and methods used in sampling texts in the creation of a corpus or collection.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="scoreFormat">
    <xs:annotation>
      <xs:documentation>Describes the type of score used to represent a musical composition (e.g., short score, full score, condensed score, close score, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="segmentation">
    <xs:annotation>
      <xs:documentation>Describes the principles according to which the musical text has been segmented, for example into movements, sections, etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="seriesStmt">
    <xs:annotation>
      <xs:documentation>(series statement) – Groups information about the series, if any, to which a publication belongs.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group maxOccurs="unbounded" ref="mei:model.titleLike"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element ref="mei:editor"/>
          <xs:element ref="mei:respStmt"/>
        </xs:choice>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.identifierLike"/>
          <xs:element ref="mei:biblScope"/>
          <xs:element ref="mei:contents"/>
          <xs:element ref="mei:seriesStmt"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="soundChan">
    <xs:annotation>
      <xs:documentation>(sound channels) – Reflects the number of apparent sound channels in the playback of a recording (monaural, stereophonic, quadraphonic, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="num" type="xs:positiveInteger">
        <xs:annotation>
          <xs:documentation>Records the channel configuration in numeric form.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="source">
    <xs:annotation>
      <xs:documentation>A bibliographic description of a source used in the creation of the electronic file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.identifierLike"/>
        <xs:element minOccurs="0" ref="mei:titleStmt"/>
        <xs:group ref="mei:macro.bibldescPart"/>
        <xs:element minOccurs="0" ref="mei:history"/>
        <xs:element minOccurs="0" ref="mei:langUsage"/>
        <xs:element minOccurs="0" ref="mei:contents"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:biblList"/>
        <xs:element minOccurs="0" ref="mei:notesStmt"/>
        <xs:element minOccurs="0" ref="mei:classification"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:extMeta"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="sourceDesc">
    <xs:annotation>
      <xs:documentation>(source description) – A container for the descriptions of the source(s) used in the creation of the electronic file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:element maxOccurs="unbounded" ref="mei:source"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="specRepro">
    <xs:annotation>
      <xs:documentation>(special reproduction characteristic) – The equalization system, noise reduction system, etc. used in making the recording (e.g., NAB, DBX, Dolby, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="stdVals">
    <xs:annotation>
      <xs:documentation>(standard values) – Specifies the format used when standardized date or number values are supplied.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.pLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="sysReq">
    <xs:annotation>
      <xs:documentation>(system requirements) – System requirements for using the electronic item.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="term">
    <xs:annotation>
      <xs:documentation>Keyword or phrase which describes a resource.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="mei:term"/>
        <xs:group ref="mei:model.textphraseLike.limited"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.classcodeident.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="termList">
    <xs:annotation>
      <xs:documentation>Collection of text phrases which describe a resource.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
          <xs:group minOccurs="0" ref="mei:model.labelLike"/>
          <xs:element ref="mei:term"/>
        </xs:sequence>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.classcodeident.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="titleStmt">
    <xs:annotation>
      <xs:documentation>(title statement) – Container for title and responsibility meta-data.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group maxOccurs="unbounded" ref="mei:model.titleLike"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.respLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="trackConfig">
    <xs:annotation>
      <xs:documentation>(track configuration) – Number of physical/input tracks on a sound medium (e.g., eight track, twelve track).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attribute name="num" type="xs:positiveInteger">
        <xs:annotation>
          <xs:documentation>Records the track configuration in numeric form.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="treatHist">
    <xs:annotation>
      <xs:documentation>(treatment history) – A record of the treatment the item has undergone (e.g., de-acidification, restoration, etc.).</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="treatSched">
    <xs:annotation>
      <xs:documentation>(treatment scheduled) – Scheduled treatment, e.g. de-acidification, restoration, etc., for an item.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="unpub">
    <xs:annotation>
      <xs:documentation>(unpublished) – Used to explicitly indicate that a bibliographic resource is unpublished.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="useRestrict">
    <xs:annotation>
      <xs:documentation>(usage restrictions) – Container for information about the conditions that affect use of a bibliographic item after access has been granted.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="watermark">
    <xs:annotation>
      <xs:documentation>Contains a description of a watermark or similar device.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="work">
    <xs:annotation>
      <xs:documentation>Provides a detailed description of a work, specifically its history, language use, and high-level musical attributes: key, tempo, meter, medium of performance, and intended duration.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.identifierLike"/>
        <xs:element minOccurs="0" ref="mei:titleStmt"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.workIdent"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:otherChar"/>
        <xs:element minOccurs="0" ref="mei:creation"/>
        <xs:element minOccurs="0" ref="mei:history"/>
        <xs:element minOccurs="0" ref="mei:langUsage"/>
        <xs:element minOccurs="0" ref="mei:perfMedium"/>
        <xs:element minOccurs="0" ref="mei:perfDuration"/>
        <xs:element minOccurs="0" ref="mei:audience"/>
        <xs:element minOccurs="0" ref="mei:contents"/>
        <xs:element minOccurs="0" ref="mei:context"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:biblList"/>
        <xs:element minOccurs="0" ref="mei:notesStmt"/>
        <xs:element minOccurs="0" ref="mei:classification"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:extMeta"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="workDesc">
    <xs:annotation>
      <xs:documentation>(work description) – Grouping mechanism for information describing non-bibliographic aspects of a text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="mei:work"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.arpeg.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.arpeg.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startid.attributes"/>
    <xs:attributeGroup ref="mei:att.arpeg.log.attribute.order"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.arpeg.log.attribute.order">
    <xs:attribute name="order">
      <xs:annotation>
        <xs:documentation>Describes the direction in which an arpeggio is to be performed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="up">
            <xs:annotation>
              <xs:documentation>Lowest to highest pitch.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="down">
            <xs:annotation>
              <xs:documentation>Highest to lowest pitch.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="nonarp">
            <xs:annotation>
              <xs:documentation>Non-arpeggiated style (usually rendered with a preceding bracket instead of a wavy line).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.arpeg.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.arpeg.vis.attribute.arrow"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.arpeg.vis.attribute.arrow">
    <xs:attribute name="arrow" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates if an arrowhead is to be drawn as part of the arpeggiation symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beam.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beam.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.beamedwith.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beam.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.beamrend.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamed.attributes">
    <xs:attributeGroup ref="mei:att.beamed.attribute.beam"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamed.attribute.beam">
    <xs:attribute name="beam">
      <xs:annotation>
        <xs:documentation>Indicates that this event is "under a beam".</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.BEAM"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamedwith.attributes">
    <xs:attributeGroup ref="mei:att.beamedwith.attribute.beam.with"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamedwith.attribute.beam.with">
    <xs:attribute name="beam.with" type="mei:data.OTHERSTAFF">
      <xs:annotation>
        <xs:documentation>In the case of cross-staff beams, the beam.with attribute is used to indicate which staff the beam is connected to; that is, the staff above or the staff below.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beaming.log.attributes">
    <xs:attributeGroup ref="mei:att.beaming.log.attribute.beam.group"/>
    <xs:attributeGroup ref="mei:att.beaming.log.attribute.beam.rests"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beaming.log.attribute.beam.group">
    <xs:attribute name="beam.group" type="xs:string">
      <xs:annotation>
        <xs:documentation>Provides an example of how automated beaming (including secondary beams) is to be performed.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beaming.log.attribute.beam.rests">
    <xs:attribute name="beam.rests" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether automatically-drawn beams should include rests shorter than a quarter note duration.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamrend.attributes">
    <xs:attributeGroup ref="mei:att.beamrend.attribute.form"/>
    <xs:attributeGroup ref="mei:att.beamrend.attribute.slope"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamrend.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Captures whether a beam is "feathered" and in which direction.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="acc">
            <xs:annotation>
              <xs:documentation>(accelerando) indicates that the secondary beams get progressively closer together toward the end of the beam.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="mixed">
            <xs:annotation>
              <xs:documentation>(mixed acc and rit) for beams that are "feathered" in both directions.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="rit">
            <xs:annotation>
              <xs:documentation>(ritardando) means that the secondary beams become progressively more distant toward the end of the beam.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="norm">
            <xs:annotation>
              <xs:documentation>(normal) indicates that the secondary beams are equidistant along the course of the beam.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamrend.attribute.slope">
    <xs:attribute name="slope" type="xs:decimal">
      <xs:annotation>
        <xs:documentation>Records the slope of the beam.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamsecondary.attributes">
    <xs:attributeGroup ref="mei:att.beamsecondary.attribute.breaksec"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamsecondary.attribute.breaksec">
    <xs:attribute name="breaksec" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Presence of this attribute indicates that the secondary beam should be broken following this note/chord. The value of the attribute records the number of beams which should remain unbroken.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamSpan.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamSpan.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamSpan.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.beamedwith.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beamSpan.vis.attributes">
    <xs:attributeGroup ref="mei:att.beam.vis.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beatRpt.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beatRpt.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.beatRpt.log.attribute.beatDef"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beatRpt.log.attribute.beatDef">
    <xs:attribute name="beatDef" type="mei:data.DURATION.gestural">
      <xs:annotation>
        <xs:documentation>Indicates the performed duration represented by the beatRpt symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beatRpt.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.expandable.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.beatRpt.vis.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.beatRpt.vis.attribute.form">
    <xs:attribute name="form" use="required" type="mei:data.BEATRPT.REND">
      <xs:annotation>
        <xs:documentation>Indicates the number of slashes required to render the appropriate beat repeat symbol. When a single beat is repeated, consisting of a single note or chord, it is indicated by a single thick, slanting slash; therefore, the value '1' should be used. The following values should be used when the beat is divided into even notes: 4ths or 8ths=1, 16ths=2, 32nds=3, 64ths=4, 128ths=5. When the beat is comprised of mixed duration values, the symbol is always rendered as 2 slashes and 2 dots.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bend.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bend.ges.attributes">
    <xs:attributeGroup ref="mei:att.bend.ges.attribute.amount"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bend.ges.attribute.amount">
    <xs:attribute name="amount" type="mei:data.BEND.AMOUNT">
      <xs:annotation>
        <xs:documentation>Records the amount of detuning. The decimal values should be rendered as a fraction (or an integer plus a fraction) along with the bend symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bend.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bend.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    <xs:attributeGroup ref="mei:att.curvature.attributes"/>
    <xs:attributeGroup ref="mei:att.curverend.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.breath.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.breath.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.breath.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bTrem.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bTrem.ges.attributes">
    <xs:attributeGroup ref="mei:att.tremmeasured.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bTrem.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.numbered.attributes"/>
    <xs:attributeGroup ref="mei:att.bTrem.log.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bTrem.log.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Indicates whether the tremolo is measured or unmeasured.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="meas">
            <xs:annotation>
              <xs:documentation>Measured tremolo.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="unmeas">
            <xs:annotation>
              <xs:documentation>Unmeasured tremolo.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.bTrem.vis.attributes">
    <xs:attributeGroup ref="mei:att.numberplacement.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.ges.cmn.attributes">
    <xs:attributeGroup ref="mei:att.graced.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.log.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beamed.attributes"/>
    <xs:attributeGroup ref="mei:att.lvpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.ornam.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.chord.vis.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beamsecondary.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cutout.attributes">
    <xs:attributeGroup ref="mei:att.cutout.attribute.cutout"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cutout.attribute.cutout">
    <xs:attribute name="cutout">
      <xs:annotation>
        <xs:documentation>"Cut-out" style indicated for this measure.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="cutout">
            <xs:annotation>
              <xs:documentation>The staff lines should not be drawn.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.expandable.attributes">
    <xs:attributeGroup ref="mei:att.expandable.attribute.expand"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.expandable.attribute.expand">
    <xs:attribute name="expand" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates whether to render a repeat symbol or the source material to which it refers. A value of 'true' renders the source material, while 'false' displays the repeat symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermata.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermata.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermata.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermata.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.fermata.vis.attribute.form"/>
    <xs:attributeGroup ref="mei:att.fermata.vis.attribute.shape"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermata.vis.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Describes the visual appearance of the fermata; that is, whether it occurs as upright or inverted.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="inv">
            <xs:annotation>
              <xs:documentation>Inverted, i.e., curve or bracket below the dot.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="norm">
            <xs:annotation>
              <xs:documentation>Upright; i.e., curve or bracket above the dot.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fermata.vis.attribute.shape">
    <xs:attribute name="shape">
      <xs:annotation>
        <xs:documentation>Describes the visual appearance of the fermata; that is, whether it has a curved, square, or angular shape.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="curved">
            <xs:annotation>
              <xs:documentation>A curve above or below the dot.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="square">
            <xs:annotation>
              <xs:documentation>A bracket above or below the dot.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="angular">
            <xs:annotation>
              <xs:documentation>A triangle above or below the dot.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fTrem.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fTrem.ges.attributes">
    <xs:attributeGroup ref="mei:att.tremmeasured.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fTrem.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.fTrem.log.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fTrem.log.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Describes the style of the tremolo.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="meas">
            <xs:annotation>
              <xs:documentation>Measured tremolo.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="unmeas">
            <xs:annotation>
              <xs:documentation>Unmeasured tremolo.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fTrem.vis.attributes">
    <xs:attributeGroup ref="mei:att.slashcount.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.gliss.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.gliss.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.gliss.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.gliss.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    <xs:attributeGroup ref="mei:att.linerend.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.graced.attributes">
    <xs:attributeGroup ref="mei:att.graced.attribute.grace"/>
    <xs:attributeGroup ref="mei:att.graced.attribute.grace.time"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.graced.attribute.grace">
    <xs:attribute name="grace" type="mei:data.GRACE">
      <xs:annotation>
        <xs:documentation>Marks a note or chord as a "grace" (without a definitive written duration) and records from which other note/chord it should "steal" time.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.graced.attribute.grace.time">
    <xs:attribute name="grace.time" type="mei:data.PERCENT">
      <xs:annotation>
        <xs:documentation>Records the amount of time to be "stolen" from a non-grace note/chord.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.hairpin.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.hairpin.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.midivalue.attributes"/>
    <xs:attributeGroup ref="mei:att.midivalue2.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.hairpin.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.hairpin.log.attribute.form"/>
    <xs:attributeGroup ref="mei:att.hairpin.log.attribute.niente"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.hairpin.log.attribute.form">
    <xs:attribute name="form" use="required">
      <xs:annotation>
        <xs:documentation>Captures the visual rendition and function of the hairpin; that is, whether it indicates an increase or a decrease in volume.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="cres">
            <xs:annotation>
              <xs:documentation>Crescendo; i.e., louder.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="dim">
            <xs:annotation>
              <xs:documentation>Diminuendo; i.e., softer.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.hairpin.log.attribute.niente">
    <xs:attribute name="niente" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates that the hairpin starts from or ends in silence. Often rendered as a small circle attached to the closed end of the hairpin. See Gould, p. 108.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.hairpin.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.linerend.base.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    <xs:attributeGroup ref="mei:att.hairpin.vis.attribute.opening"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.hairpin.vis.attribute.opening">
    <xs:attribute name="opening" type="mei:data.MEASUREMENTABS">
      <xs:annotation>
        <xs:documentation>Specifies the distance between the lines at the open end of a hairpin dynamic mark.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.halfmRpt.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.halfmRpt.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.halfmRpt.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.expandable.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.harpPedal.log.attribute.c"/>
    <xs:attributeGroup ref="mei:att.harpPedal.log.attribute.d"/>
    <xs:attributeGroup ref="mei:att.harpPedal.log.attribute.e"/>
    <xs:attributeGroup ref="mei:att.harpPedal.log.attribute.f"/>
    <xs:attributeGroup ref="mei:att.harpPedal.log.attribute.g"/>
    <xs:attributeGroup ref="mei:att.harpPedal.log.attribute.a"/>
    <xs:attributeGroup ref="mei:att.harpPedal.log.attribute.b"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attribute.c">
    <xs:attribute name="c" default="n">
      <xs:annotation>
        <xs:documentation>Indicates the pedal setting for the harp's C strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="f">
            <xs:annotation>
              <xs:documentation>Flat.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="n">
            <xs:annotation>
              <xs:documentation>Natural.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Sharp.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attribute.d">
    <xs:attribute name="d" default="n">
      <xs:annotation>
        <xs:documentation>Indicates the pedal setting for the harp's D strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="f">
            <xs:annotation>
              <xs:documentation>Flat.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="n">
            <xs:annotation>
              <xs:documentation>Natural.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Sharp.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attribute.e">
    <xs:attribute name="e" default="n">
      <xs:annotation>
        <xs:documentation>Indicates the pedal setting for the harp's E strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="f">
            <xs:annotation>
              <xs:documentation>Flat.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="n">
            <xs:annotation>
              <xs:documentation>Natural.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Sharp.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attribute.f">
    <xs:attribute name="f" default="n">
      <xs:annotation>
        <xs:documentation>Indicates the pedal setting for the harp's F strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="f">
            <xs:annotation>
              <xs:documentation>Flat.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="n">
            <xs:annotation>
              <xs:documentation>Natural.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Sharp.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attribute.g">
    <xs:attribute name="g" default="n">
      <xs:annotation>
        <xs:documentation>Indicates the pedal setting for the harp's G strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="f">
            <xs:annotation>
              <xs:documentation>Flat.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="n">
            <xs:annotation>
              <xs:documentation>Natural.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Sharp.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attribute.a">
    <xs:attribute name="a" default="n">
      <xs:annotation>
        <xs:documentation>Indicates the pedal setting for the harp's A strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="f">
            <xs:annotation>
              <xs:documentation>Flat.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="n">
            <xs:annotation>
              <xs:documentation>Natural.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Sharp.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.log.attribute.b">
    <xs:attribute name="b" default="n">
      <xs:annotation>
        <xs:documentation>Indicates the pedal setting for the harp's B strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="f">
            <xs:annotation>
              <xs:documentation>Flat.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="n">
            <xs:annotation>
              <xs:documentation>Natural.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="s">
            <xs:annotation>
              <xs:documentation>Sharp.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harpPedal.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.layerDef.log.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beaming.log.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lvpresent.attributes">
    <xs:attributeGroup ref="mei:att.lvpresent.attribute.lv"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lvpresent.attribute.lv">
    <xs:attribute name="lv" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Indicates the attachment of an l.v. (laissez vibrer) sign to this element.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.measure.vis.attributes">
    <xs:attributeGroup ref="mei:att.barplacement.attributes"/>
    <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    <xs:attributeGroup ref="mei:att.width.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigGrp.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigGrp.log.attributes">
    <xs:attributeGroup ref="mei:att.meterSigGrp.log.attribute.func"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.meterSigGrp.log.attribute.func">
    <xs:attribute name="func" use="required">
      <xs:annotation>
        <xs:documentation>Function of the meter signature group.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="alternating">
            <xs:annotation>
              <xs:documentation>Meter signatures appear in alternating measures.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="interchanging">
            <xs:annotation>
              <xs:documentation>Meter signatures are interchangable, e.g. 3/4 and 6/8.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="mixed">
            <xs:annotation>
              <xs:documentation>Meter signatures with different unit values are used to express a complex metrical pattern that is not expressable using traditional means, such as 2/4+1/8.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRest.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRest.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRest.log.attributes">
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.fermatapresent.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRest.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.cutout.attributes"/>
    <xs:attributeGroup ref="mei:att.relativesize.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.pitched.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRpt.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRpt.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRpt.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.expandable.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRpt2.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRpt2.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mRpt2.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.expandable.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mSpace.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mSpace.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mSpace.log.attributes">
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.fermatapresent.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mSpace.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.cutout.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRest.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRest.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
    <xs:attributeGroup ref="mei:att.instrumentident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRest.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.numbered.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRest.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.pitched.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.multiRest.vis.attribute.block"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRest.vis.attribute.block">
    <xs:attribute name="block" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>When the block attribute is used, combinations of the 1, 2, and 4 measure rest forms (Read, p. 104) should be rendered instead of the modern form or an alternative symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRpt.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRpt.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.numbered.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.multiRpt.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.expandable.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.cmn.attributes">
    <xs:attributeGroup ref="mei:att.graced.attributes"/>
    <xs:attributeGroup ref="mei:att.note.ges.cmn.attribute.gliss"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.cmn.attribute.gliss">
    <xs:attribute name="gliss" type="mei:data.GLISSANDO">
      <xs:annotation>
        <xs:documentation>Indicates that this element participates in a glissando.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.log.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beamed.attributes"/>
    <xs:attributeGroup ref="mei:att.lvpresent.attributes"/>
    <xs:attributeGroup ref="mei:att.ornam.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.vis.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beamsecondary.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.numbered.attributes">
    <xs:attributeGroup ref="mei:att.numbered.attribute.num"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.numbered.attribute.num">
    <xs:attribute name="num" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Records a number or count accompanying a notational feature.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.numberplacement.attributes">
    <xs:attributeGroup ref="mei:att.numberplacement.attribute.num.place"/>
    <xs:attributeGroup ref="mei:att.numberplacement.attribute.num.visible"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.numberplacement.attribute.num.place">
    <xs:attribute name="num.place" type="mei:data.PLACE">
      <xs:annotation>
        <xs:documentation>States where the tuplet number will be placed in relation to the note heads.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.numberplacement.attribute.num.visible">
    <xs:attribute name="num.visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines if the tuplet number is visible.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octave.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octave.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octave.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.octavedisplacement.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.octave.log.attribute.coll"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octave.log.attribute.coll">
    <xs:attribute name="coll">
      <xs:annotation>
        <xs:documentation>Indicates whether the octave displacement should be performed simultaneously with the written notes, i.e., "coll' ottava". Unlike other octave signs which are indicated by broken lines, coll' ottava typically uses an unbroken line or a series of longer broken lines, ending with a short vertical stroke. See Read, p. 47-48.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="coll">
            <xs:annotation>
              <xs:documentation>Coll' ottava (with the octave).</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.octave.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.extender.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ossia.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pedal.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pedal.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.pedal.log.attribute.dir"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pedal.log.attribute.dir">
    <xs:attribute name="dir" use="required">
      <xs:annotation>
        <xs:documentation>Records the position of the piano damper pedal.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="down">
            <xs:annotation>
              <xs:documentation>Depress the pedal.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="up">
            <xs:annotation>
              <xs:documentation>Release the pedal.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="half">
            <xs:annotation>
              <xs:documentation>Half pedal.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="bounce">
            <xs:annotation>
              <xs:documentation>Release then immediately depress the pedal.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pedal.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.linerend.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.pedal.vis.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pedal.vis.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Determines whether piano pedal marks should be rendered as lines or as terms.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="line">
            <xs:annotation>
              <xs:documentation>Continuous line with start and end positions rendered by vertical bars and bounces shown by upward-pointing "blips".</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="pedstar">
            <xs:annotation>
              <xs:documentation>Pedal down and half pedal rendered with "Ped.", pedal up rendered by "*", pedal "bounce" rendered with "* Ped.".</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="altpedstar">
            <xs:annotation>
              <xs:documentation>Pedal up and down indications same as with "pedstar", but bounce is rendered with "Ped." only.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.phrase.vis.cmn.attributes">
    <xs:attributeGroup ref="mei:att.curvature.attributes"/>
    <xs:attributeGroup ref="mei:att.curverend.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pianopedals.attributes">
    <xs:attributeGroup ref="mei:att.pianopedals.attribute.pedal.style"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pianopedals.attribute.pedal.style">
    <xs:attribute name="pedal.style">
      <xs:annotation>
        <xs:documentation>Determines whether piano pedal marks should be rendered as lines or as terms.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="line">
            <xs:annotation>
              <xs:documentation>Continuous line with start and end positions rendered by vertical bars and bounces shown by upward-pointing "blips".</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="pedstar">
            <xs:annotation>
              <xs:documentation>Pedal down and half pedal rendered with "Ped.", pedal up rendered by "*", pedal "bounce" rendered with "* Ped.".</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="altpedstar">
            <xs:annotation>
              <xs:documentation>Pedal up and down indications same as with "pedstar", but bounce is rendered with "Ped." only.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.reh.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.reh.log.attributes">
    <xs:attributeGroup ref="mei:att.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.startid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.reh.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rehearsal.attributes">
    <xs:attributeGroup ref="mei:att.rehearsal.attribute.reh.enclose"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rehearsal.attribute.reh.enclose">
    <xs:attribute name="reh.enclose">
      <xs:annotation>
        <xs:documentation>Describes the enclosing shape for rehearsal marks.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="box">
            <xs:annotation>
              <xs:documentation>Enclosed by box.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="circle">
            <xs:annotation>
              <xs:documentation>Enclosed by circle.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="none">
            <xs:annotation>
              <xs:documentation>No enclosing shape.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.log.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beamed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.log.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beaming.log.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.vis.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beaming.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.pianopedals.attributes"/>
    <xs:attributeGroup ref="mei:att.rehearsal.attributes"/>
    <xs:attributeGroup ref="mei:att.slurrend.attributes"/>
    <xs:attributeGroup ref="mei:att.tierend.attributes"/>
    <xs:attributeGroup ref="mei:att.scoreDef.vis.cmn.attribute.grid.show"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.vis.cmn.attribute.grid.show">
    <xs:attribute name="grid.show" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines whether to display guitar chord grids.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slur.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
    <xs:attributeGroup ref="mei:att.joined.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slur.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slur.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slur.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    <xs:attributeGroup ref="mei:att.curvature.attributes"/>
    <xs:attributeGroup ref="mei:att.curverend.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slurrend.attributes">
    <xs:attributeGroup ref="mei:att.slurrend.attribute.slur.lform"/>
    <xs:attributeGroup ref="mei:att.slurrend.attribute.slur.lwidth"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slurrend.attribute.slur.lform">
    <xs:attribute name="slur.lform" type="mei:data.LINEFORM">
      <xs:annotation>
        <xs:documentation/>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.slurrend.attribute.slur.lwidth">
    <xs:attribute name="slur.lwidth" type="mei:data.LINEWIDTH">
      <xs:annotation>
        <xs:documentation/>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.space.log.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beamed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.log.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beaming.log.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.cmn.attributes">
    <xs:attributeGroup ref="mei:att.beaming.vis.attributes"/>
    <xs:attributeGroup ref="mei:att.pianopedals.attributes"/>
    <xs:attributeGroup ref="mei:att.rehearsal.attributes"/>
    <xs:attributeGroup ref="mei:att.slurrend.attributes"/>
    <xs:attributeGroup ref="mei:att.tierend.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.cmn.attributes">
    <xs:attributeGroup ref="mei:att.stems.cmn.attribute.stem.with"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.stems.cmn.attribute.stem.with">
    <xs:attribute name="stem.with" type="mei:data.OTHERSTAFF">
      <xs:annotation>
        <xs:documentation>Contains an indication of which staff a note or chord that logically belongs to the current staff should be visually placed on; that is, the one above or the one below.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tie.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tie.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tie.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    <xs:attributeGroup ref="mei:att.curvature.attributes"/>
    <xs:attributeGroup ref="mei:att.curverend.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tierend.attributes">
    <xs:attributeGroup ref="mei:att.tierend.attribute.tie.lform"/>
    <xs:attributeGroup ref="mei:att.tierend.attribute.tie.lwidth"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tierend.attribute.tie.lform">
    <xs:attribute name="tie.lform" type="mei:data.LINEFORM">
      <xs:annotation>
        <xs:documentation/>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tierend.attribute.tie.lwidth">
    <xs:attribute name="tie.lwidth" type="mei:data.LINEWIDTH">
      <xs:annotation>
        <xs:documentation/>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tremmeasured.attributes">
    <xs:attributeGroup ref="mei:att.tremmeasured.attribute.measperf"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tremmeasured.attribute.measperf">
    <xs:attribute name="measperf" type="mei:data.DURATION.cmn">
      <xs:annotation>
        <xs:documentation>The performed duration of an individual note in a measured tremolo.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.beamedwith.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.ratio.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.numberplacement.attributes"/>
    <xs:attributeGroup ref="mei:att.tuplet.vis.attribute.bracket.place"/>
    <xs:attributeGroup ref="mei:att.tuplet.vis.attribute.bracket.visible"/>
    <xs:attributeGroup ref="mei:att.tuplet.vis.attribute.dur.visible"/>
    <xs:attributeGroup ref="mei:att.tuplet.vis.attribute.num.format"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.vis.attribute.bracket.place">
    <xs:attribute name="bracket.place" type="mei:data.PLACE">
      <xs:annotation>
        <xs:documentation>Used to state where a tuplet bracket will be placed in relation to the note heads.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.vis.attribute.bracket.visible">
    <xs:attribute name="bracket.visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>States whether a bracket should be rendered with a tuplet.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.vis.attribute.dur.visible">
    <xs:attribute name="dur.visible" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines if the tuplet duration is visible.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tuplet.vis.attribute.num.format">
    <xs:attribute name="num.format">
      <xs:annotation>
        <xs:documentation>Controls how the num:numbase ratio is to be displayed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="count">
            <xs:annotation>
              <xs:documentation>Only the num attribute is displayed, e.g., '7'.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="ratio">
            <xs:annotation>
              <xs:documentation>Both the num and numbase attributes are displayed, e.g., '7:4'.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tupletSpan.anl.attributes">
    <xs:attributeGroup ref="mei:att.tuplet.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tupletSpan.ges.attributes">
    <xs:attributeGroup ref="mei:att.tuplet.ges.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tupletSpan.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.beamedwith.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.ratio.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tupletSpan.vis.attributes">
    <xs:attributeGroup ref="mei:att.tuplet.vis.attributes"/>
  </xs:attributeGroup>
  <xs:group name="model.controleventLike.cmn">
    <xs:choice>
      <xs:element ref="mei:arpeg"/>
      <xs:element ref="mei:beamSpan"/>
      <xs:element ref="mei:breath"/>
      <xs:element ref="mei:fermata"/>
      <xs:element ref="mei:hairpin"/>
      <xs:element ref="mei:harpPedal"/>
      <xs:element ref="mei:octave"/>
      <xs:element ref="mei:pedal"/>
      <xs:element ref="mei:reh"/>
      <xs:element ref="mei:slur"/>
      <xs:element ref="mei:tie"/>
      <xs:element ref="mei:tupletSpan"/>
      <xs:group ref="mei:model.ornamentLike.cmn"/>
      <xs:element ref="mei:cpMark"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.controleventLike.cmn_alternation">
    <xs:choice>
      <xs:element ref="mei:arpeg"/>
      <xs:element ref="mei:beamSpan"/>
      <xs:element ref="mei:breath"/>
      <xs:element ref="mei:fermata"/>
      <xs:element ref="mei:hairpin"/>
      <xs:element ref="mei:harpPedal"/>
      <xs:element ref="mei:octave"/>
      <xs:element ref="mei:pedal"/>
      <xs:element ref="mei:reh"/>
      <xs:element ref="mei:slur"/>
      <xs:element ref="mei:tie"/>
      <xs:element ref="mei:tupletSpan"/>
      <xs:group ref="mei:model.ornamentLike.cmn_alternation"/>
      <xs:element ref="mei:cpMark"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.controleventLike.cmn_sequence">
    <xs:sequence>
      <xs:element ref="mei:arpeg"/>
      <xs:element ref="mei:beamSpan"/>
      <xs:element ref="mei:breath"/>
      <xs:element ref="mei:fermata"/>
      <xs:element ref="mei:hairpin"/>
      <xs:element ref="mei:harpPedal"/>
      <xs:element ref="mei:octave"/>
      <xs:element ref="mei:pedal"/>
      <xs:element ref="mei:reh"/>
      <xs:element ref="mei:slur"/>
      <xs:element ref="mei:tie"/>
      <xs:element ref="mei:tupletSpan"/>
      <xs:group ref="mei:model.ornamentLike.cmn_sequence"/>
      <xs:element ref="mei:cpMark"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.cmn_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:arpeg"/>
      <xs:element minOccurs="0" ref="mei:beamSpan"/>
      <xs:element minOccurs="0" ref="mei:breath"/>
      <xs:element minOccurs="0" ref="mei:fermata"/>
      <xs:element minOccurs="0" ref="mei:hairpin"/>
      <xs:element minOccurs="0" ref="mei:harpPedal"/>
      <xs:element minOccurs="0" ref="mei:octave"/>
      <xs:element minOccurs="0" ref="mei:pedal"/>
      <xs:element minOccurs="0" ref="mei:reh"/>
      <xs:element minOccurs="0" ref="mei:slur"/>
      <xs:element minOccurs="0" ref="mei:tie"/>
      <xs:element minOccurs="0" ref="mei:tupletSpan"/>
      <xs:group minOccurs="0" ref="mei:model.ornamentLike.cmn_sequenceOptional"/>
      <xs:element minOccurs="0" ref="mei:cpMark"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.cmn_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:arpeg"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:beamSpan"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:breath"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:fermata"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:hairpin"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:harpPedal"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:octave"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:pedal"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:reh"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:slur"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:tie"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:tupletSpan"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.ornamentLike.cmn_sequenceOptionalRepeatable"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:cpMark"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.cmn_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:arpeg"/>
      <xs:element maxOccurs="unbounded" ref="mei:beamSpan"/>
      <xs:element maxOccurs="unbounded" ref="mei:breath"/>
      <xs:element maxOccurs="unbounded" ref="mei:fermata"/>
      <xs:element maxOccurs="unbounded" ref="mei:hairpin"/>
      <xs:element maxOccurs="unbounded" ref="mei:harpPedal"/>
      <xs:element maxOccurs="unbounded" ref="mei:octave"/>
      <xs:element maxOccurs="unbounded" ref="mei:pedal"/>
      <xs:element maxOccurs="unbounded" ref="mei:reh"/>
      <xs:element maxOccurs="unbounded" ref="mei:slur"/>
      <xs:element maxOccurs="unbounded" ref="mei:tie"/>
      <xs:element maxOccurs="unbounded" ref="mei:tupletSpan"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.ornamentLike.cmn_sequenceRepeatable"/>
      <xs:element maxOccurs="unbounded" ref="mei:cpMark"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.cmn">
    <xs:choice>
      <xs:element ref="mei:beam"/>
      <xs:element ref="mei:beatRpt"/>
      <xs:element ref="mei:bTrem"/>
      <xs:element ref="mei:fTrem"/>
      <xs:element ref="mei:halfmRpt"/>
      <xs:element ref="mei:tuplet"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.cmn_alternation">
    <xs:choice>
      <xs:element ref="mei:beam"/>
      <xs:element ref="mei:beatRpt"/>
      <xs:element ref="mei:bTrem"/>
      <xs:element ref="mei:fTrem"/>
      <xs:element ref="mei:halfmRpt"/>
      <xs:element ref="mei:tuplet"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.cmn_sequence">
    <xs:sequence>
      <xs:element ref="mei:beam"/>
      <xs:element ref="mei:beatRpt"/>
      <xs:element ref="mei:bTrem"/>
      <xs:element ref="mei:fTrem"/>
      <xs:element ref="mei:halfmRpt"/>
      <xs:element ref="mei:tuplet"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.cmn_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:beam"/>
      <xs:element minOccurs="0" ref="mei:beatRpt"/>
      <xs:element minOccurs="0" ref="mei:bTrem"/>
      <xs:element minOccurs="0" ref="mei:fTrem"/>
      <xs:element minOccurs="0" ref="mei:halfmRpt"/>
      <xs:element minOccurs="0" ref="mei:tuplet"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.cmn_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:beam"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:beatRpt"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:bTrem"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:fTrem"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:halfmRpt"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:tuplet"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.cmn_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:beam"/>
      <xs:element maxOccurs="unbounded" ref="mei:beatRpt"/>
      <xs:element maxOccurs="unbounded" ref="mei:bTrem"/>
      <xs:element maxOccurs="unbounded" ref="mei:fTrem"/>
      <xs:element maxOccurs="unbounded" ref="mei:halfmRpt"/>
      <xs:element maxOccurs="unbounded" ref="mei:tuplet"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.measureFilling">
    <xs:choice>
      <xs:element ref="mei:mRest"/>
      <xs:element ref="mei:mRpt"/>
      <xs:element ref="mei:mRpt2"/>
      <xs:element ref="mei:mSpace"/>
      <xs:element ref="mei:multiRest"/>
      <xs:element ref="mei:multiRpt"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.measureFilling_alternation">
    <xs:choice>
      <xs:element ref="mei:mRest"/>
      <xs:element ref="mei:mRpt"/>
      <xs:element ref="mei:mRpt2"/>
      <xs:element ref="mei:mSpace"/>
      <xs:element ref="mei:multiRest"/>
      <xs:element ref="mei:multiRpt"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.measureFilling_sequence">
    <xs:sequence>
      <xs:element ref="mei:mRest"/>
      <xs:element ref="mei:mRpt"/>
      <xs:element ref="mei:mRpt2"/>
      <xs:element ref="mei:mSpace"/>
      <xs:element ref="mei:multiRest"/>
      <xs:element ref="mei:multiRpt"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.measureFilling_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:mRest"/>
      <xs:element minOccurs="0" ref="mei:mRpt"/>
      <xs:element minOccurs="0" ref="mei:mRpt2"/>
      <xs:element minOccurs="0" ref="mei:mSpace"/>
      <xs:element minOccurs="0" ref="mei:multiRest"/>
      <xs:element minOccurs="0" ref="mei:multiRpt"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.measureFilling_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mRest"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mRpt"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mRpt2"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mSpace"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:multiRest"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:multiRpt"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.measureFilling_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:mRest"/>
      <xs:element maxOccurs="unbounded" ref="mei:mRpt"/>
      <xs:element maxOccurs="unbounded" ref="mei:mRpt2"/>
      <xs:element maxOccurs="unbounded" ref="mei:mSpace"/>
      <xs:element maxOccurs="unbounded" ref="mei:multiRest"/>
      <xs:element maxOccurs="unbounded" ref="mei:multiRpt"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.cmn">
    <xs:sequence>
      <xs:group ref="mei:model.eventLike.measureFilling"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measureLike">
    <xs:sequence>
      <xs:element ref="mei:measure"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measureLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:measure"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measureLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:measure"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measureLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:measure"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measureLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:measure"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measureLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:measure"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.measurePart">
    <xs:choice>
      <xs:group ref="mei:model.controleventLike"/>
      <xs:group ref="mei:model.staffLike"/>
      <xs:group ref="mei:model.ossiaLike"/>
      <xs:group ref="mei:model.lyricsLike"/>
      <xs:group ref="mei:model.midiLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.ossiaLike">
    <xs:sequence>
      <xs:element ref="mei:ossia"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.sectionPart.cmn">
    <xs:sequence>
      <xs:group ref="mei:model.measureLike"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="arpeg">
    <xs:annotation>
      <xs:documentation>(arpeggiation) – Indicates that the notes of a chord are to be performed successively rather than simultaneously, usually from lowest to highest. Sometimes called a "roll".</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.arpeg.log.attributes"/>
      <xs:attributeGroup ref="mei:att.arpeg.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.arpeg.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="beam">
    <xs:annotation>
      <xs:documentation>A container for a series of explicitly beamed events that begins and ends entirely within a measure.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.beam.log.attributes"/>
      <xs:attributeGroup ref="mei:att.beam.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.beam.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="beamSpan">
    <xs:annotation>
      <xs:documentation>(beam span) – Alternative element for explicitly encoding beams, particularly those which extend across bar lines.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.beamSpan.log.attributes"/>
      <xs:attributeGroup ref="mei:att.beamSpan.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.beamSpan.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.beamSpan.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="beatRpt">
    <xs:annotation>
      <xs:documentation>(beat repeat) – An indication that material on a preceding beat should be repeated.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.beatRpt.log.attributes"/>
      <xs:attributeGroup ref="mei:att.beatRpt.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.beatRpt.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.plist.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="bend">
    <xs:annotation>
      <xs:documentation>A variation in pitch (often micro-tonal) upwards or downwards during the course of a note.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.bend.log.attributes"/>
      <xs:attributeGroup ref="mei:att.bend.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.bend.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.bend.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="breath">
    <xs:annotation>
      <xs:documentation>(breath mark) – A indication of a point at which the performer on an instrument requiring breath (including the voice) may breathe.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.breath.log.attributes"/>
      <xs:attributeGroup ref="mei:att.breath.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.breath.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="bTrem">
    <xs:annotation>
      <xs:documentation>(bowed tremolo) – A rapid alternation on a single pitch or chord.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice>
        <xs:element ref="mei:chord"/>
        <xs:element ref="mei:note"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.bTrem.log.attributes"/>
      <xs:attributeGroup ref="mei:att.bTrem.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.bTrem.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.bTrem.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="fermata">
    <xs:annotation>
      <xs:documentation>An indication placed over a note or rest to indicate that it should be held longer than its written value. May also occur over a bar line to indicate the end of a phrase or section. Sometimes called a 'hold' or 'pause'.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.fermata.log.attributes"/>
      <xs:attributeGroup ref="mei:att.fermata.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.fermata.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.fermata.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="fTrem">
    <xs:annotation>
      <xs:documentation>(fingered tremolo) – A rapid alternation between a pair of notes (or chords or perhaps between a note and a chord) that are (usually) farther apart than a major second.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice>
        <xs:sequence>
          <xs:element ref="mei:chord"/>
          <xs:choice>
            <xs:element ref="mei:chord"/>
            <xs:element ref="mei:note"/>
          </xs:choice>
        </xs:sequence>
        <xs:sequence>
          <xs:element ref="mei:note"/>
          <xs:choice>
            <xs:element ref="mei:chord"/>
            <xs:element ref="mei:note"/>
          </xs:choice>
        </xs:sequence>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.fTrem.log.attributes"/>
      <xs:attributeGroup ref="mei:att.fTrem.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.fTrem.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.fTrem.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="gliss">
    <xs:annotation>
      <xs:documentation>(glissando) – A continuous or sliding movement from one pitch to another, usually indicated by a straight or wavy line.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.gliss.log.attributes"/>
      <xs:attributeGroup ref="mei:att.gliss.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.gliss.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.gliss.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="hairpin">
    <xs:annotation>
      <xs:documentation>Indicates continuous dynamics expressed on the score as wedge-shaped graphics, e.g. &lt; and &gt;.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.hairpin.log.attributes"/>
      <xs:attributeGroup ref="mei:att.hairpin.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.hairpin.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.hairpin.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="halfmRpt">
    <xs:annotation>
      <xs:documentation>(half-measure repeat) – A half-measure repeat in any meter.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.halfmRpt.log.attributes"/>
      <xs:attributeGroup ref="mei:att.halfmRpt.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.halfmRpt.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="harpPedal">
    <xs:annotation>
      <xs:documentation>(harp pedal) – Harp pedal diagram.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.harpPedal.log.attributes"/>
      <xs:attributeGroup ref="mei:att.harpPedal.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.harpPedal.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.harpPedal.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="measure">
    <xs:annotation>
      <xs:documentation>Unit of musical time consisting of a fixed number of note-values of a given type, as determined by the prevailing meter, and delimited in musical notation by bar lines.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.milestoneLike.music"/>
        <xs:group ref="mei:model.staffDefLike"/>
        <xs:group ref="mei:model.annotLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.measurePart"/>
        <xs:group ref="mei:model.grmrLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.measure.log.attributes"/>
      <xs:attributeGroup ref="mei:att.measure.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.measure.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.measure.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="meterSig">
    <xs:annotation>
      <xs:documentation>(meter signature) – Written meter signature.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.meterSig.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.meterSig.log.attributes"/>
      <xs:attributeGroup ref="mei:att.meterSig.vis.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="meterSigGrp">
    <xs:annotation>
      <xs:documentation>(meter signature group) – Used to capture alternating, interchanging, and mixed meter signatures.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="mei:meterSig"/>
        <xs:element maxOccurs="unbounded" ref="mei:meterSig"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.meterSigGrp.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.meterSigGrp.log.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mRest">
    <xs:annotation>
      <xs:documentation>(measure rest) – Complete measure rest in any meter. </xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.mRest.log.attributes"/>
      <xs:attributeGroup ref="mei:att.mRest.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.mRest.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.mRest.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mRpt">
    <xs:annotation>
      <xs:documentation>(measure repeat) – An indication that the previous measure should be repeated.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.mRpt.log.attributes"/>
      <xs:attributeGroup ref="mei:att.mRpt.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.mRpt.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mRpt2">
    <xs:annotation>
      <xs:documentation>(2-measure repeat) – An indication that the previous two measures should be repeated.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.mRpt2.log.attributes"/>
      <xs:attributeGroup ref="mei:att.mRpt2.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.mRpt2.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mSpace">
    <xs:annotation>
      <xs:documentation>(measure space) – A measure containing only empty space in any meter.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.mSpace.log.attributes"/>
      <xs:attributeGroup ref="mei:att.mSpace.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.mSpace.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.mSpace.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="multiRest">
    <xs:annotation>
      <xs:documentation>(multiple rest) – Multiple measures of rest compressed into a single symbol, frequently found in performer parts.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.multiRest.log.attributes"/>
      <xs:attributeGroup ref="mei:att.multiRest.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.multiRest.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.multiRest.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="multiRpt">
    <xs:annotation>
      <xs:documentation>(multiple repeat) – Multiple repeated measures.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.multiRpt.log.attributes"/>
      <xs:attributeGroup ref="mei:att.multiRpt.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.multiRpt.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="octave">
    <xs:annotation>
      <xs:documentation>An indication that a passage should be performed one or more octaves above or below its written pitch.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.octave.log.attributes"/>
      <xs:attributeGroup ref="mei:att.octave.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.octave.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.octave.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="ossia">
    <xs:annotation>
      <xs:documentation>An alternate notational version *present in the source being transcribed*.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice>
        <xs:sequence>
          <xs:group ref="mei:model.staffLike"/>
          <xs:group maxOccurs="unbounded" ref="mei:model.staffLike"/>
        </xs:sequence>
        <xs:sequence>
          <xs:group ref="mei:model.layerLike"/>
          <xs:group maxOccurs="unbounded" ref="mei:model.layerLike"/>
        </xs:sequence>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.ossia.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="pedal">
    <xs:annotation>
      <xs:documentation>Piano pedal mark.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pedal.log.attributes"/>
      <xs:attributeGroup ref="mei:att.pedal.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.pedal.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="reh">
    <xs:annotation>
      <xs:documentation>(rehearsal mark) – In an orchestral score and its corresponding parts, a mark indicating a convenient point from which to resume rehearsal after a break.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.lbLike"/>
        <xs:group ref="mei:model.rendLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.reh.log.attributes"/>
      <xs:attributeGroup ref="mei:att.reh.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.reh.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="slur">
    <xs:annotation>
      <xs:documentation>Indication of 1) a "unified melodic idea" or 2) performance technique.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:curve"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.slur.log.attributes"/>
      <xs:attributeGroup ref="mei:att.slur.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.slur.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.slur.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="tie">
    <xs:annotation>
      <xs:documentation>An indication that two notes of the same pitch form a single note with their combined rhythmic values.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:curve"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.tie.log.attributes"/>
      <xs:attributeGroup ref="mei:att.tie.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.tie.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="tuplet">
    <xs:annotation>
      <xs:documentation>A group of notes with "irregular" (sometimes called "irrational") rhythmic values, for example, three notes in the time normally occupied by two or nine in the time of five.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.tuplet.log.attributes"/>
      <xs:attributeGroup ref="mei:att.tuplet.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.tuplet.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.tuplet.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="tupletSpan">
    <xs:annotation>
      <xs:documentation>(tuplet span) – Alternative element for encoding tuplets, especially useful for tuplets that extend across bar lines.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.tupletSpan.log.attributes"/>
      <xs:attributeGroup ref="mei:att.tupletSpan.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.tupletSpan.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.tupletSpan.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.accid.vis.mensural.attributes">
    <xs:attributeGroup ref="mei:att.staffloc.pitched.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.dot.vis.mensural.attributes">
    <xs:attributeGroup ref="mei:att.staffloc.pitched.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ligature.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ligature.log.attributes">
    <xs:attributeGroup ref="mei:att.ligature.log.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ligature.log.attribute.form">
    <xs:attribute name="form" type="mei:data.LIGATUREFORM">
      <xs:annotation>
        <xs:documentation>Provides an indication of the function of the ligature.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensur.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensur.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.relativesize.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.mensur.vis.attribute.form"/>
    <xs:attributeGroup ref="mei:att.mensur.vis.attribute.orient"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensur.vis.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Indicates whether the base symbol is written vertically or horizontally.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="horizontal">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="vertical">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensur.vis.attribute.orient">
    <xs:attribute name="orient" type="mei:data.ORIENTATION">
      <xs:annotation>
        <xs:documentation>Describes the rotation or reflection of the base symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.log.attributes">
    <xs:attributeGroup ref="mei:att.mensural.shared.attributes"/>
    <xs:attributeGroup ref="mei:att.mensural.log.attribute.mensur.dot"/>
    <xs:attributeGroup ref="mei:att.mensural.log.attribute.mensur.sign"/>
    <xs:attributeGroup ref="mei:att.mensural.log.attribute.mensur.slash"/>
    <xs:attributeGroup ref="mei:att.mensural.log.attribute.proport.num"/>
    <xs:attributeGroup ref="mei:att.mensural.log.attribute.proport.numbase"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.log.attribute.mensur.dot">
    <xs:attribute name="mensur.dot" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Determines if a dot is to be added to the base symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.log.attribute.mensur.sign">
    <xs:attribute name="mensur.sign" type="mei:data.MENSURATIONSIGN">
      <xs:annotation>
        <xs:documentation>The base symbol in the mensuration sign/time signature of mensural notation.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.log.attribute.mensur.slash">
    <xs:attribute name="mensur.slash" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Indicates the number lines added to the mensuration sign. For example, one slash is added for what we now call 'alla breve'.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.log.attribute.proport.num">
    <xs:attribute name="proport.num" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Together, proport.num and proport.numbase specify a proportional change as a ratio, e.g., 1:3. Proport.num is for the first value in the ratio.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.log.attribute.proport.numbase">
    <xs:attribute name="proport.numbase" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Together, proport.num and proport.numbase specify a proportional change as a ratio, e.g., 1:3. Proport.numbase is for the second value in the ratio.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.shared.attributes">
    <xs:attributeGroup ref="mei:att.mensural.shared.attribute.modusmaior"/>
    <xs:attributeGroup ref="mei:att.mensural.shared.attribute.modusminor"/>
    <xs:attributeGroup ref="mei:att.mensural.shared.attribute.prolatio"/>
    <xs:attributeGroup ref="mei:att.mensural.shared.attribute.tempus"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.shared.attribute.modusmaior">
    <xs:attribute name="modusmaior" type="mei:data.MODUSMAIOR">
      <xs:annotation>
        <xs:documentation>Describes the maxima-long relationship.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.shared.attribute.modusminor">
    <xs:attribute name="modusminor" type="mei:data.MODUSMINOR">
      <xs:annotation>
        <xs:documentation>Describes the long-breve relationship.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.shared.attribute.prolatio">
    <xs:attribute name="prolatio" type="mei:data.PROLATIO">
      <xs:annotation>
        <xs:documentation>Describes the semibreve-minim relationship.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.shared.attribute.tempus">
    <xs:attribute name="tempus" type="mei:data.TEMPUS">
      <xs:annotation>
        <xs:documentation>Describes the breve-semibreve relationship.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.vis.attributes">
    <xs:attributeGroup ref="mei:att.mensural.vis.attribute.mensur.color"/>
    <xs:attributeGroup ref="mei:att.mensural.vis.attribute.mensur.form"/>
    <xs:attributeGroup ref="mei:att.mensural.vis.attribute.mensur.loc"/>
    <xs:attributeGroup ref="mei:att.mensural.vis.attribute.mensur.orient"/>
    <xs:attributeGroup ref="mei:att.mensural.vis.attribute.mensur.size"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.vis.attribute.mensur.color">
    <xs:attribute name="mensur.color" type="mei:data.COLOR">
      <xs:annotation>
        <xs:documentation>Records the color of the mensuration sign. Do not confuse this with the musical term 'color' as used in pre-CMN notation.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.vis.attribute.mensur.form">
    <xs:attribute name="mensur.form">
      <xs:annotation>
        <xs:documentation>Indicates whether the base symbol is written vertically or horizontally.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="horizontal">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="vertical">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.vis.attribute.mensur.loc">
    <xs:attribute name="mensur.loc" type="mei:data.STAFFLOC">
      <xs:annotation>
        <xs:documentation>Holds the staff location of the mensuration sign.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.vis.attribute.mensur.orient">
    <xs:attribute name="mensur.orient" type="mei:data.ORIENTATION">
      <xs:annotation>
        <xs:documentation>Describes the rotation or reflection of the base symbol.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mensural.vis.attribute.mensur.size">
    <xs:attribute name="mensur.size" type="mei:data.SIZE">
      <xs:annotation>
        <xs:documentation>Describes the relative size of the mensuration sign.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.mensural.attributes">
    <xs:attributeGroup ref="mei:att.duration.ratio.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.log.mensural.attributes">
    <xs:attributeGroup ref="mei:att.note.log.mensural.attribute.lig"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.log.mensural.attribute.lig">
    <xs:attribute name="lig">
      <xs:annotation>
        <xs:documentation>Indicates this element's participation in a ligature.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="recta">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="obliqua">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.proport.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.proport.log.attributes">
    <xs:attributeGroup ref="mei:att.duration.ratio.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.proport.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.ges.mensural.attributes">
    <xs:attributeGroup ref="mei:att.duration.ratio.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.vis.mensural.attributes">
    <xs:attributeGroup ref="mei:att.rest.vis.mensural.attribute.spaces"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rest.vis.mensural.attribute.spaces">
    <xs:attribute name="spaces" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>States how many spaces are covered by the rest.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.log.mensural.attributes">
    <xs:attributeGroup ref="mei:att.mensural.log.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.scoreDef.vis.mensural.attributes">
    <xs:attributeGroup ref="mei:att.mensural.vis.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.log.mensural.attributes">
    <xs:attributeGroup ref="mei:att.mensural.log.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.vis.mensural.attributes">
    <xs:attributeGroup ref="mei:att.mensural.vis.attributes"/>
  </xs:attributeGroup>
  <xs:group name="model.eventLike.mensural">
    <xs:choice>
      <xs:element ref="mei:ligature"/>
      <xs:element ref="mei:mensur"/>
      <xs:element ref="mei:proport"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.mensural_alternation">
    <xs:choice>
      <xs:element ref="mei:ligature"/>
      <xs:element ref="mei:mensur"/>
      <xs:element ref="mei:proport"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.mensural_sequence">
    <xs:sequence>
      <xs:element ref="mei:ligature"/>
      <xs:element ref="mei:mensur"/>
      <xs:element ref="mei:proport"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.mensural_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:ligature"/>
      <xs:element minOccurs="0" ref="mei:mensur"/>
      <xs:element minOccurs="0" ref="mei:proport"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.mensural_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:ligature"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mensur"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:proport"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.mensural_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:ligature"/>
      <xs:element maxOccurs="unbounded" ref="mei:mensur"/>
      <xs:element maxOccurs="unbounded" ref="mei:proport"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.mensural">
    <xs:choice>
      <xs:group ref="mei:model.controleventLike"/>
      <xs:group ref="mei:model.noteModifierLike"/>
      <xs:group ref="mei:model.lyricsLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.layerPart.mensural_alternation">
    <xs:choice>
      <xs:group ref="mei:model.controleventLike_alternation"/>
      <xs:group ref="mei:model.noteModifierLike_alternation"/>
      <xs:group ref="mei:model.lyricsLike_alternation"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.layerPart.mensural_sequence">
    <xs:sequence>
      <xs:group ref="mei:model.controleventLike_sequence"/>
      <xs:group ref="mei:model.noteModifierLike_sequence"/>
      <xs:group ref="mei:model.lyricsLike_sequence"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.mensural_sequenceOptional">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.controleventLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.noteModifierLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.lyricsLike_sequenceOptional"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.mensural_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.controleventLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.noteModifierLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.lyricsLike_sequenceOptionalRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.mensural_sequenceRepeatable">
    <xs:sequence>
      <xs:group maxOccurs="unbounded" ref="mei:model.controleventLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.noteModifierLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.lyricsLike_sequenceRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.staffDefPart.mensural">
    <xs:choice>
      <xs:element ref="mei:mensur"/>
      <xs:element ref="mei:proport"/>
    </xs:choice>
  </xs:group>
  <xs:element name="ligature">
    <xs:annotation>
      <xs:documentation>A mensural notation symbol that combines two or more notes into a single sign.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.layerPart"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.ligature.log.attributes"/>
      <xs:attributeGroup ref="mei:att.ligature.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mensur">
    <xs:annotation>
      <xs:documentation>(mensuration) – Collects information about the metrical relationship between a note value and the next smaller value; that is, either triple or duple.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.mensur.log.attributes"/>
      <xs:attributeGroup ref="mei:att.mensur.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.mensur.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="proport">
    <xs:annotation>
      <xs:documentation>(proportion) – Description of note duration as arithmetic ratio.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.proport.log.attributes"/>
      <xs:attributeGroup ref="mei:att.proport.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.proport.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.ineume.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ineume.log.attributes">
    <xs:attributeGroup ref="mei:att.ineume.log.attribute.form"/>
    <xs:attributeGroup ref="mei:att.ineume.log.attribute.name"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ineume.log.attribute.form">
    <xs:attribute name="form" type="mei:data.INEUMEFORM">
      <xs:annotation>
        <xs:documentation>Provides a subclass or functional label for the neume.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ineume.log.attribute.name">
    <xs:attribute name="name" type="mei:data.INEUMENAME">
      <xs:annotation>
        <xs:documentation>Records the name of the neume.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ineume.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.uneume.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
    <xs:attributeGroup ref="mei:att.harmonicfunction.attributes"/>
    <xs:attributeGroup ref="mei:att.intervalmelodic.attributes"/>
    <xs:attributeGroup ref="mei:att.melodicfunction.attributes"/>
    <xs:attributeGroup ref="mei:att.solfa.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.uneume.log.attributes">
    <xs:attributeGroup ref="mei:att.event.attributes"/>
    <xs:attributeGroup ref="mei:att.syltext.attributes"/>
    <xs:attributeGroup ref="mei:att.uneume.log.attribute.form"/>
    <xs:attributeGroup ref="mei:att.uneume.log.attribute.name"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.uneume.log.attribute.form">
    <xs:attribute name="form" type="mei:data.UNEUMEFORM">
      <xs:annotation>
        <xs:documentation>Provides a subclass or functional label for the neume.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.uneume.log.attribute.name">
    <xs:attribute name="name" type="mei:data.UNEUMENAME">
      <xs:annotation>
        <xs:documentation>Records the name of the neume.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.uneume.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.relativesize.attributes"/>
    <xs:attributeGroup ref="mei:att.staffloc.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visibility.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:group name="model.eventLike.neumes">
    <xs:choice>
      <xs:element ref="mei:ineume"/>
      <xs:element ref="mei:uneume"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.neumes_alternation">
    <xs:choice>
      <xs:element ref="mei:ineume"/>
      <xs:element ref="mei:uneume"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.eventLike.neumes_sequence">
    <xs:sequence>
      <xs:element ref="mei:ineume"/>
      <xs:element ref="mei:uneume"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.neumes_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:ineume"/>
      <xs:element minOccurs="0" ref="mei:uneume"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.neumes_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:ineume"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:uneume"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.eventLike.neumes_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:ineume"/>
      <xs:element maxOccurs="unbounded" ref="mei:uneume"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.neumes">
    <xs:choice>
      <xs:group ref="mei:model.eventLike.neumes"/>
      <xs:group ref="mei:model.syllableLike"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.layerPart.neumes_alternation">
    <xs:choice>
      <xs:group ref="mei:model.eventLike.neumes_alternation"/>
      <xs:group ref="mei:model.syllableLike_alternation"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.layerPart.neumes_sequence">
    <xs:sequence>
      <xs:group ref="mei:model.eventLike.neumes_sequence"/>
      <xs:group ref="mei:model.syllableLike_sequence"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.neumes_sequenceOptional">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.eventLike.neumes_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.syllableLike_sequenceOptional"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.neumes_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.eventLike.neumes_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.syllableLike_sequenceOptionalRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.layerPart.neumes_sequenceRepeatable">
    <xs:sequence>
      <xs:group maxOccurs="unbounded" ref="mei:model.eventLike.neumes_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.syllableLike_sequenceRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.syllableLike">
    <xs:sequence>
      <xs:element ref="mei:syllable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.syllableLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:syllable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.syllableLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:syllable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.syllableLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:syllable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.syllableLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:syllable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.syllableLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:syllable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.syllablePart">
    <xs:choice>
      <xs:group ref="mei:model.controleventLike"/>
      <xs:group ref="mei:model.eventLike"/>
      <xs:group ref="mei:model.noteModifierLike"/>
      <xs:group ref="mei:model.eventLike.neumes"/>
      <xs:group ref="mei:model.lyricsLike"/>
      <xs:group ref="mei:model.sylLike"/>
      <xs:group ref="mei:model.verseLike"/>
      <xs:group ref="mei:model.midiLike"/>
    </xs:choice>
  </xs:group>
  <xs:element name="ineume">
    <xs:annotation>
      <xs:documentation>(interrupted neume) – A graphically interrupted neume; that is, a neume which is logically a single entity but is written using multiple signs.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.verseLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.ineume.log.attributes"/>
      <xs:attributeGroup ref="mei:att.ineume.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.ineume.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="syllable">
    <xs:annotation>
      <xs:documentation>Neume notation can be thought of as "neumed text". Therefore, the syllable element provides high-level organization in this repertoire.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.milestoneLike.music"/>
        <xs:group ref="mei:model.scoreDefLike"/>
        <xs:group ref="mei:model.staffDefLike"/>
        <xs:group ref="mei:model.staffGrpLike"/>
        <xs:group ref="mei:model.annotLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.syllablePart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="uneume">
    <xs:annotation>
      <xs:documentation>(uninterrupted neume) – A graphically-uninterrupted neume sign.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.appLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.verseLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.uneume.log.attributes"/>
      <xs:attributeGroup ref="mei:att.uneume.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.uneume.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.common.anl.attributes">
    <xs:attributeGroup ref="mei:att.alignment.attributes"/>
    <xs:attributeGroup ref="mei:att.common.anl.attribute.copyof"/>
    <xs:attributeGroup ref="mei:att.common.anl.attribute.corresp"/>
    <xs:attributeGroup ref="mei:att.common.anl.attribute.next"/>
    <xs:attributeGroup ref="mei:att.common.anl.attribute.prev"/>
    <xs:attributeGroup ref="mei:att.common.anl.attribute.sameas"/>
    <xs:attributeGroup ref="mei:att.common.anl.attribute.synch"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.anl.attribute.copyof">
    <xs:attribute name="copyof" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Points to an element of which the current element is a copy.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.anl.attribute.corresp">
    <xs:attribute name="corresp">
      <xs:annotation>
        <xs:documentation>Used to point to other elements that correspond to this one in a generic fashion.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.anl.attribute.next">
    <xs:attribute name="next">
      <xs:annotation>
        <xs:documentation>Used to point to the next event(s) in a user-defined collection.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.anl.attribute.prev">
    <xs:attribute name="prev">
      <xs:annotation>
        <xs:documentation>Points to the previous event(s) in a user-defined collection.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.anl.attribute.sameas">
    <xs:attribute name="sameas">
      <xs:annotation>
        <xs:documentation>Points to an element that is the same as the current element but is not a literal copy of the current element.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.common.anl.attribute.synch">
    <xs:attribute name="synch">
      <xs:annotation>
        <xs:documentation>Points to elements that are synchronous with the current element.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harmonicfunction.attributes">
    <xs:attributeGroup ref="mei:att.harmonicfunction.attribute.deg"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harmonicfunction.attribute.deg">
    <xs:attribute name="deg" type="mei:data.SCALEDEGREE">
      <xs:annotation>
        <xs:documentation>Captures relative scale degree information using Humdrum **deg syntax -- an optional indicator of melodic approach (^ = ascending approach, v = descending approach), a scale degree value (1 = tonic ... 7 = leading tone), and an optional indication of chromatic alteration. The amount of chromatic alternation is not indicated.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.intervalharmonic.attributes">
    <xs:attributeGroup ref="mei:att.intervalharmonic.attribute.inth"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.intervalharmonic.attribute.inth">
    <xs:attribute name="inth">
      <xs:annotation>
        <xs:documentation>Encodes the harmonic interval between pitches occurring at the same time.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.INTERVAL.HARMONIC"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.intervalmelodic.attributes">
    <xs:attributeGroup ref="mei:att.intervalmelodic.attribute.intm"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.intervalmelodic.attribute.intm">
    <xs:attribute name="intm" type="mei:data.INTERVAL.MELODIC">
      <xs:annotation>
        <xs:documentation>Encodes the melodic interval from the previous pitch. The value may be a general directional indication (u, d, s), an indication of diatonic interval direction, quality, and size, or a precise numeric value in half steps.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.melodicfunction.attributes">
    <xs:attributeGroup ref="mei:att.melodicfunction.attribute.mfunc"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.melodicfunction.attribute.mfunc">
    <xs:attribute name="mfunc" type="mei:data.MELODICFUNCTION">
      <xs:annotation>
        <xs:documentation>Describes melodic function using Humdrum **embel syntax.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pitchclass.attributes">
    <xs:attributeGroup ref="mei:att.pitchclass.attribute.pclass"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.pitchclass.attribute.pclass">
    <xs:attribute name="pclass" type="mei:data.PITCHCLASS">
      <xs:annotation>
        <xs:documentation>Holds pitch class information.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.solfa.attributes">
    <xs:attributeGroup ref="mei:att.solfa.attribute.psolfa"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.solfa.attribute.psolfa">
    <xs:attribute name="psolfa" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Contains sol-fa designation, e.g., do, re, mi, etc., in either a fixed or movable Do system.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mordent.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mordent.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.ornamentaccid.attributes"/>
    <xs:attributeGroup ref="mei:att.mordent.log.attribute.form"/>
    <xs:attributeGroup ref="mei:att.mordent.log.attribute.long"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mordent.log.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Traditionally, the 'normal' mordent is written as a short wavy line with a vertical line through it and the inverted mordent is written without the vertical line. However, the meaning of these signs is sometimes reversed. See Read, p. 245-246. Another attribute in the visual domain would be necessary in order to be completely explicit about which visual symbol is actually to be rendered.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="inv">
            <xs:annotation>
              <xs:documentation>Inverted mordent, e.g., performed as the principal note, followed by its upper neighbor, with a return to the principal note.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="norm">
            <xs:annotation>
              <xs:documentation>"normal" mordent, e.g., performed as the written note, followed by its lower neighbor, with a return to the written note.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mordent.log.attribute.long">
    <xs:attribute name="long" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>When the long attribute is set to 'yes', a double or long mordent, consisting of 5 notes, is indicated.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.mordent.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornam.attributes">
    <xs:attributeGroup ref="mei:att.ornam.attribute.ornam"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornam.attribute.ornam">
    <xs:attribute name="ornam">
      <xs:annotation>
        <xs:documentation>Indicates that this element has an attached ornament. If visual information about the ornament is needed, then one of the elements that represents an ornament (mordent, trill, or turn) should be employed.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.ORNAM.cmn"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornamentaccid.attributes">
    <xs:attributeGroup ref="mei:att.ornamentaccid.attribute.accidupper"/>
    <xs:attributeGroup ref="mei:att.ornamentaccid.attribute.accidlower"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornamentaccid.attribute.accidupper">
    <xs:attribute name="accidupper" type="mei:data.ACCIDENTAL.EXPLICIT">
      <xs:annotation>
        <xs:documentation>Records the written accidental associated with an upper neighboring note.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.ornamentaccid.attribute.accidlower">
    <xs:attribute name="accidlower" type="mei:data.ACCIDENTAL.EXPLICIT">
      <xs:annotation>
        <xs:documentation>Records the written accidental associated with a lower neighboring note.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.trill.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.trill.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.trill.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.ornamentaccid.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.trill.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.extender.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.turn.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.turn.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.ornamentaccid.attributes"/>
    <xs:attributeGroup ref="mei:att.startid.attributes"/>
    <xs:attributeGroup ref="mei:att.turn.log.attribute.delayed"/>
    <xs:attributeGroup ref="mei:att.turn.log.attribute.form"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.turn.log.attribute.delayed">
    <xs:attribute name="delayed" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>When the delayed attribute is set to 'true', the turn begins on the second half of the beat. See Read, p. 246.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.turn.log.attribute.form">
    <xs:attribute name="form">
      <xs:annotation>
        <xs:documentation>Indicates the style of the turn.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="inv">
            <xs:annotation>
              <xs:documentation>Inverted turn, e.g., begins on the note below the written note.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="norm">
            <xs:annotation>
              <xs:documentation>"normal" turn, e.g., begins on the note above the written note.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.turn.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:group name="model.ornamentLike.cmn">
    <xs:choice>
      <xs:element ref="mei:mordent"/>
      <xs:element ref="mei:trill"/>
      <xs:element ref="mei:turn"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.ornamentLike.cmn_alternation">
    <xs:choice>
      <xs:element ref="mei:mordent"/>
      <xs:element ref="mei:trill"/>
      <xs:element ref="mei:turn"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.ornamentLike.cmn_sequence">
    <xs:sequence>
      <xs:element ref="mei:mordent"/>
      <xs:element ref="mei:trill"/>
      <xs:element ref="mei:turn"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.ornamentLike.cmn_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:mordent"/>
      <xs:element minOccurs="0" ref="mei:trill"/>
      <xs:element minOccurs="0" ref="mei:turn"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.ornamentLike.cmn_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mordent"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:trill"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:turn"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.ornamentLike.cmn_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:mordent"/>
      <xs:element maxOccurs="unbounded" ref="mei:trill"/>
      <xs:element maxOccurs="unbounded" ref="mei:turn"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="mordent">
    <xs:annotation>
      <xs:documentation>An ornament indicating rapid alternation of the main note with a secondary note, usually a step below, but sometimes a step above. </xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.mordent.log.attributes"/>
      <xs:attributeGroup ref="mei:att.mordent.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.mordent.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="trill">
    <xs:annotation>
      <xs:documentation>Rapid alternation of a note with another (usually at the interval of a second above).</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.trill.log.attributes"/>
      <xs:attributeGroup ref="mei:att.trill.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.trill.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.trill.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="turn">
    <xs:annotation>
      <xs:documentation>An ornament consisting of four notes — the upper neighbor of the written note, the written note, the lower neighbor, and the written note.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.turn.log.attributes"/>
      <xs:attributeGroup ref="mei:att.turn.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.turn.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="meiCorpus">
    <xs:annotation>
      <xs:documentation>(MEI corpus) – A group of related MEI documents, consisting of a header for the group, and one or more &lt;mei&gt; elements, each with its own complete header.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="mei:meiHead"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mei"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.meiversion.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.crit.attributes">
    <xs:attributeGroup ref="mei:att.handident.attributes"/>
    <xs:attributeGroup ref="mei:att.responsibility.attributes"/>
    <xs:attributeGroup ref="mei:att.sequence.attributes"/>
    <xs:attributeGroup ref="mei:att.source.attributes"/>
    <xs:attributeGroup ref="mei:att.crit.attribute.cause"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.crit.attribute.cause">
    <xs:attribute name="cause" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Classifies the cause for the variant reading, according to any appropriate typology of possible origins.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.rdg.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.source.attributes">
    <xs:attributeGroup ref="mei:att.source.attribute.source"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.source.attribute.source">
    <xs:attribute name="source">
      <xs:annotation>
        <xs:documentation>Contains a list of one or more pointers indicating the sources which attest to a given reading. Each value should correspond to the ID of a &lt;source&gt; element located in the document header.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.appLike">
    <xs:sequence>
      <xs:element ref="mei:app"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.rdgPart.critapp">
    <xs:choice>
      <xs:group ref="mei:model.controleventLike"/>
      <xs:group ref="mei:model.eventLike"/>
      <xs:group ref="mei:model.layerLike"/>
      <xs:group ref="mei:model.noteModifierLike"/>
      <xs:group ref="mei:model.eventLike.measureFilling"/>
      <xs:group ref="mei:model.eventLike.neumes"/>
      <xs:group ref="mei:model.syllableLike"/>
      <xs:group ref="mei:model.lyricsLike"/>
      <xs:group ref="mei:model.sylLike"/>
      <xs:group ref="mei:model.verseLike"/>
      <xs:group ref="mei:model.midiLike"/>
    </xs:choice>
  </xs:group>
  <xs:element name="app">
    <xs:annotation>
      <xs:documentation>(apparatus) – Contains one or more alternative encodings.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="mei:lem"/>
        <xs:element ref="mei:rdg"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:rdg"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="lem">
    <xs:annotation>
      <xs:documentation>(lemma) – Contains the lemma, or base text, of a textual variation.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:expansion"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.appLike"/>
          <xs:group ref="mei:model.divLike"/>
          <xs:group ref="mei:model.milestoneLike.music"/>
          <xs:group ref="mei:model.staffGrpLike"/>
          <xs:group ref="mei:model.annotLike"/>
          <xs:group ref="mei:model.graphicprimitiveLike"/>
          <xs:group ref="mei:model.editLike"/>
          <xs:group ref="mei:model.transcriptionLike"/>
          <xs:group ref="mei:model.rdgPart.critapp"/>
          <xs:group ref="mei:model.sectionPart"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.crit.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.rdg.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="rdg">
    <xs:annotation>
      <xs:documentation>(reading) – Contains a single reading within a textual variation.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:expansion"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.appLike"/>
          <xs:group ref="mei:model.divLike"/>
          <xs:group ref="mei:model.milestoneLike.music"/>
          <xs:group ref="mei:model.staffGrpLike"/>
          <xs:group ref="mei:model.annotLike"/>
          <xs:group ref="mei:model.graphicprimitiveLike"/>
          <xs:group ref="mei:model.editLike"/>
          <xs:group ref="mei:model.transcriptionLike"/>
          <xs:group ref="mei:model.rdgPart.critapp"/>
          <xs:group ref="mei:model.sectionPart"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.crit.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.rdg.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.agentident.attributes">
    <xs:attributeGroup ref="mei:att.agentident.attribute.agent"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.agentident.attribute.agent">
    <xs:attribute name="agent" type="xs:string">
      <xs:annotation>
        <xs:documentation>Signifies the causative agent of damage, illegibility, or other loss of original text.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cpMark.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cpMark.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cpMark.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.origin.timestamp.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.origin.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.origin.layerident.attributes"/>
    <xs:attributeGroup ref="mei:att.origin.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.octavedisplacement.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.cpMark.vis.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attributes"/>
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.enclosingchars.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.edit.attributes">
    <xs:attributeGroup ref="mei:att.responsibility.attributes"/>
    <xs:attributeGroup ref="mei:att.source.attributes"/>
    <xs:attributeGroup ref="mei:att.evidence.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.evidence.attributes">
    <xs:attributeGroup ref="mei:att.evidence.attribute.cert"/>
    <xs:attributeGroup ref="mei:att.evidence.attribute.evidence"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.evidence.attribute.cert">
    <xs:attribute name="cert" type="mei:data.CERTAINTY">
      <xs:annotation>
        <xs:documentation>Signifies the degree of certainty or precision associated with a feature.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.evidence.attribute.evidence">
    <xs:attribute name="evidence" type="xs:NMTOKEN">
      <xs:annotation>
        <xs:documentation>Indicates the nature of the evidence supporting the reliability or accuracy of the intervention or interpretation. Suggested values include: 'internal', 'external', 'conjecture'.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.extent.attributes">
    <xs:attributeGroup ref="mei:att.extent.attribute.extent"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.extent.attribute.extent">
    <xs:attribute name="extent" type="xs:string">
      <xs:annotation>
        <xs:documentation>Indicates the extent of damage or omission.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.reasonident.attributes">
    <xs:attributeGroup ref="mei:att.reasonident.attribute.reason"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.reasonident.attribute.reason">
    <xs:attribute name="reason" type="xs:string">
      <xs:annotation>
        <xs:documentation>Holds a short phrase describing the reason for missing textual material (gap), why material is supplied (supplied), or why transcription is difficult (unclear).</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.trans.attributes">
    <xs:attributeGroup ref="mei:att.handident.attributes"/>
    <xs:attributeGroup ref="mei:att.sequence.attributes"/>
  </xs:attributeGroup>
  <xs:group name="model.choicePart">
    <xs:choice>
      <xs:group ref="mei:model.editorialLike"/>
      <xs:group ref="mei:model.editLike"/>
      <xs:element ref="mei:corr"/>
      <xs:element ref="mei:orig"/>
      <xs:element ref="mei:reg"/>
      <xs:element ref="mei:sic"/>
      <xs:element ref="mei:unclear"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.editLike">
    <xs:choice>
      <xs:element ref="mei:choice"/>
      <xs:element ref="mei:subst"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.transcriptionLike">
    <xs:choice>
      <xs:element ref="mei:add"/>
      <xs:element ref="mei:corr"/>
      <xs:element ref="mei:damage"/>
      <xs:element ref="mei:del"/>
      <xs:element ref="mei:gap"/>
      <xs:element ref="mei:handShift"/>
      <xs:element ref="mei:orig"/>
      <xs:element ref="mei:reg"/>
      <xs:element ref="mei:restore"/>
      <xs:element ref="mei:sic"/>
      <xs:element ref="mei:supplied"/>
      <xs:element ref="mei:unclear"/>
    </xs:choice>
  </xs:group>
  <xs:element name="abbr">
    <xs:annotation>
      <xs:documentation>(abbreviation) – A generic element for 1) a shortened form of a word, including an acronym or 2) a shorthand notation.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.trans.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="expan" type="xs:string">
        <xs:annotation>
          <xs:documentation>Records the expansion of a text abbreviation.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="add">
    <xs:annotation>
      <xs:documentation>(addition) – Marks an addition to the text.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.trans.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="method">
        <xs:annotation>
          <xs:documentation>Contains an indication of how the addition was accomplished.
Suggested values include: 1] interline; 2] intraline; 3] overstrike</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:union memberTypes="xs:NMTOKEN">
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="interline">
                  <xs:annotation>
                    <xs:documentation>New material added to the existing text.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="intraline">
                  <xs:annotation>
                    <xs:documentation>New material added above or below original text.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="overstrike">
                  <xs:annotation>
                    <xs:documentation>New text obscures original.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="choice">
    <xs:annotation>
      <xs:documentation>Groups a number of alternative encodings for the same point in a text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.choicePart"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="corr">
    <xs:annotation>
      <xs:documentation>(correction) – Contains the correct form of an apparent erroneous passage.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.trans.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="cpMark">
    <xs:annotation>
      <xs:documentation>(copy/colla parte mark) – A verbal or graphical indication to copy musical material written elsewhere.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.cpMark.log.attributes"/>
      <xs:attributeGroup ref="mei:att.cpMark.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.cpMark.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.cpMark.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="damage">
    <xs:annotation>
      <xs:documentation>Contains an area of damage to the physical medium.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.agentident.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.extent.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.handident.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="degree" type="xs:string">
        <xs:annotation>
          <xs:documentation>Records the degree of damage.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="del">
    <xs:annotation>
      <xs:documentation>(deletion) – Contains information deleted, marked as deleted, or otherwise indicated as superfluous or spurious in the copy text by an author, scribe, annotator, or corrector.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.trans.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="rend">
        <xs:annotation>
          <xs:documentation>Captures the appearance of the source material using MEI-defined descriptors.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction>
            <xs:simpleType>
              <xs:list itemType="mei:data.TEXTRENDITION"/>
            </xs:simpleType>
            <xs:minLength value="1"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="expan">
    <xs:annotation>
      <xs:documentation>(expansion) – Contains the expansion of an abbreviation.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.trans.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="abbr" type="xs:string">
        <xs:annotation>
          <xs:documentation>Captures the abbreviated form of the text.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="gap">
    <xs:annotation>
      <xs:documentation>Indicates a point where material has been omitted in a transcription, whether as part of sampling practice or for editorial reasons described in the MEI header.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.extent.attributes"/>
      <xs:attributeGroup ref="mei:att.handident.attributes"/>
      <xs:attributeGroup ref="mei:att.reasonident.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="handShift">
    <xs:annotation>
      <xs:documentation>Marks the beginning of a passage written in a new hand, or of a change in the scribe, writing style, ink or character of the document hand.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.medium.attributes"/>
      <xs:attribute name="character">
        <xs:annotation>
          <xs:documentation>Describes the character of the new hand.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="new" type="mei:data.URI">
        <xs:annotation>
          <xs:documentation>Identifies the new hand. The value must contain the ID of a hand element given elsewhere in the document.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="old" type="mei:data.URI">
        <xs:annotation>
          <xs:documentation>Identifies the old hand. The value must contain the ID of a hand element given elsewhere in the document.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="orig">
    <xs:annotation>
      <xs:documentation>(original) – Contains material which is marked as following the original, rather than being normalized or corrected.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="reg">
    <xs:annotation>
      <xs:documentation>(regularization) – Contains material which has been regularized or normalized in some sense.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="restore">
    <xs:annotation>
      <xs:documentation>Indicates restoration of material to an earlier state by cancellation of an editorial or authorial marking or instruction.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.trans.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attribute name="desc" type="xs:string">
        <xs:annotation>
          <xs:documentation>Provides a description of the means of restoration, 'stet' or 'strike-down', for example.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="sic">
    <xs:annotation>
      <xs:documentation>Contains apparently incorrect or inaccurate material.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="subst">
    <xs:annotation>
      <xs:documentation>(substitution) – Groups transcriptional elements when the combination is to be regarded as a single intervention in the text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group maxOccurs="unbounded" ref="mei:model.transcriptionLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.trans.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="supplied">
    <xs:annotation>
      <xs:documentation>Contains material supplied by the transcriber or editor for any reason.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.fLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.verseLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.agentident.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.reasonident.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="unclear">
    <xs:annotation>
      <xs:documentation>Contains material that cannot be transcribed with certainty because it is illegible or inaudible in the source.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.eventLike"/>
        <xs:group ref="mei:model.eventLike.neumes"/>
        <xs:group ref="mei:model.controleventLike"/>
        <xs:group ref="mei:model.lyricsLike"/>
        <xs:group ref="mei:model.midiLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.eventLike.measureFilling"/>
        <xs:group ref="mei:model.noteModifierLike"/>
        <xs:group ref="mei:model.sectionLike"/>
        <xs:group ref="mei:model.measureLike"/>
        <xs:group ref="mei:model.staffLike"/>
        <xs:group ref="mei:model.layerLike"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.fLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.agentident.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.handident.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.reasonident.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.facsimile.attributes">
    <xs:attributeGroup ref="mei:att.facsimile.attribute.facs"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.facsimile.attribute.facs">
    <xs:attribute name="facs">
      <xs:annotation>
        <xs:documentation>Permits the current element to reference a facsimile surface or image zone which corresponds to it.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list itemType="mei:data.URI"/>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:element name="facsimile">
    <xs:annotation>
      <xs:documentation>Contains a representation of some written source in the form of a set of images rather than as transcribed or encoded text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:surface"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="surface">
    <xs:annotation>
      <xs:documentation>Defines a writing surface in terms of a rectangular coordinate space, optionally grouping one or more graphic representations of that space, and rectangular zones of interest within it.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.figDescLike"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.graphicLike"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:zone"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.coordinated.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.startid.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="zone">
    <xs:annotation>
      <xs:documentation>Defines an area of interest within a surface or graphic file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.figDescLike"/>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.graphicLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.coordinated.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.tabular.attributes">
    <xs:attributeGroup ref="mei:att.tabular.attribute.colspan"/>
    <xs:attributeGroup ref="mei:att.tabular.attribute.rowspan"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tabular.attribute.colspan">
    <xs:attribute name="colspan" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>The number of columns spanned by this cell.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.tabular.attribute.rowspan">
    <xs:attribute name="rowspan" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>The number of rows spanned by this cell.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.figDescLike">
    <xs:sequence>
      <xs:element ref="mei:figDesc"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.figureLike">
    <xs:sequence>
      <xs:element ref="mei:fig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.figureLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:fig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.figureLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:fig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.figureLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:fig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.figureLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:fig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.figureLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:fig"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.graphicLike">
    <xs:sequence>
      <xs:element ref="mei:graphic"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.tableLike">
    <xs:sequence>
      <xs:element ref="mei:table"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="fig">
    <xs:annotation>
      <xs:documentation>(figure) – Groups elements representing or containing graphic information such as an illustration or figure.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.captionLike"/>
        <xs:element ref="mei:figDesc"/>
        <xs:group ref="mei:model.graphicLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="figDesc">
    <xs:annotation>
      <xs:documentation>(figure description) – Contains a brief prose description of the appearance or content of a graphic figure, for use when documenting an image without displaying it.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike.limited"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="graphic">
    <xs:annotation>
      <xs:documentation>Indicates the location of an inline graphic.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:zone"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.dimensions.attributes"/>
      <xs:attributeGroup ref="mei:att.internetmedia.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.measurement.attributes"/>
      <xs:attributeGroup ref="mei:att.startid.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
      <xs:attribute name="ulx" type="xs:nonNegativeInteger">
        <xs:annotation>
          <xs:documentation>Indicates the upper-left corner x coordinate.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="uly" type="xs:nonNegativeInteger">
        <xs:annotation>
          <xs:documentation>Indicates the upper-left corner y coordinate.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="table">
    <xs:annotation>
      <xs:documentation>Contains text displayed in tabular form.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" ref="mei:model.captionLike"/>
        <xs:element maxOccurs="unbounded" ref="mei:tr"/>
        <xs:group minOccurs="0" ref="mei:model.captionLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="td">
    <xs:annotation>
      <xs:documentation>(table data) – Designates a table cell that contains data as opposed to a cell that contains column or row heading information.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
      <xs:attributeGroup ref="mei:att.tabular.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="th">
    <xs:annotation>
      <xs:documentation>(table header) – Designates a table cell containing column or row heading information as opposed to one containing data.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
      <xs:attributeGroup ref="mei:att.tabular.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="tr">
    <xs:annotation>
      <xs:documentation>(table row) – A formatting element that contains one or more cells (intersection of a row and a column) in a &lt;table&gt;.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="mei:th"/>
        <xs:element ref="mei:td"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.fretlocation.attributes">
    <xs:attributeGroup ref="mei:att.fretlocation.attribute.fret"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.fretlocation.attribute.fret">
    <xs:attribute name="fret" type="mei:data.FRET">
      <xs:annotation>
        <xs:documentation>Records the location at which a string should be stopped against a fret.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harm.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
    <xs:attributeGroup ref="mei:att.intervalharmonic.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harm.ges.attributes">
    <xs:attributeGroup ref="mei:att.duration.performed.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harm.log.attributes">
    <xs:attributeGroup ref="mei:att.controlevent.attributes"/>
    <xs:attributeGroup ref="mei:att.augmentdots.attributes"/>
    <xs:attributeGroup ref="mei:att.duration.additive.attributes"/>
    <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp2.musical.attributes"/>
    <xs:attributeGroup ref="mei:att.harm.log.attribute.chordref"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harm.log.attribute.chordref">
    <xs:attribute name="chordref" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Contains a reference to a &lt;chordDef&gt; element elsewhere in the document.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harm.vis.attributes">
    <xs:attributeGroup ref="mei:att.extender.attributes"/>
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.ho.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset2.to.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
    <xs:attributeGroup ref="mei:att.harm.vis.attribute.rendgrid"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.harm.vis.attribute.rendgrid">
    <xs:attribute name="rendgrid">
      <xs:annotation>
        <xs:documentation>Describes how the harmonic indication should be rendered.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="grid">
            <xs:annotation>
              <xs:documentation>Chord tablature grid.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="gridtext">
            <xs:annotation>
              <xs:documentation>Chord tablature grid and the element's textual content.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="text">
            <xs:annotation>
              <xs:documentation>Textual content of the element.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.chordTableLike">
    <xs:sequence>
      <xs:element ref="mei:chordTable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.harmony">
    <xs:sequence>
      <xs:group ref="mei:model.harmLike"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.harmony_alternation">
    <xs:sequence>
      <xs:group ref="mei:model.harmLike_alternation"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.harmony_sequence">
    <xs:sequence>
      <xs:group ref="mei:model.harmLike_sequence"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.harmony_sequenceOptional">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.harmLike_sequenceOptional"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.harmony_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.harmLike_sequenceOptionalRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.controleventLike.harmony_sequenceRepeatable">
    <xs:sequence>
      <xs:group maxOccurs="unbounded" ref="mei:model.harmLike_sequenceRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.figbassLike">
    <xs:sequence>
      <xs:element ref="mei:fb"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.fLike">
    <xs:sequence>
      <xs:element ref="mei:f"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.harmLike">
    <xs:sequence>
      <xs:element ref="mei:harm"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.harmLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:harm"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.harmLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:harm"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.harmLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:harm"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.harmLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:harm"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.harmLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:harm"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="barre">
    <xs:annotation>
      <xs:documentation>An indication of fingering in a chord tablature grid.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.fretlocation.attributes"/>
      <xs:attributeGroup ref="mei:att.startendid.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="chordDef">
    <xs:annotation>
      <xs:documentation>(chord definition) – Chord tablature definition.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:chordMember"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:barre"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attribute name="pos" type="xs:positiveInteger">
        <xs:annotation>
          <xs:documentation>Records the fret position at which the chord tablature is to be played.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="chordMember">
    <xs:annotation>
      <xs:documentation>An individual pitch in a chord defined by a &lt;chordDef&gt; element.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.accidental.performed.attributes"/>
      <xs:attributeGroup ref="mei:att.fretlocation.attributes"/>
      <xs:attributeGroup ref="mei:att.intervalharmonic.attributes"/>
      <xs:attributeGroup ref="mei:att.pitched.attributes"/>
      <xs:attribute name="fing" type="mei:data.FINGER.FRET">
        <xs:annotation>
          <xs:documentation>Indicates which finger, if any, should be used to play an individual string. The index, middle, ring, and little fingers are represented by the values 1-4, while 't' is for the thumb. The values 'x' and 'o' indicate muffled and open strings, respectively.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="chordTable">
    <xs:annotation>
      <xs:documentation>Chord/tablature look-up table.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="mei:chordDef"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="f">
    <xs:annotation>
      <xs:documentation>(figure) – Single element of a figured bass indication.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.f.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.f.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.f.log.attributes"/>
      <xs:attributeGroup ref="mei:att.f.vis.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="fb">
    <xs:annotation>
      <xs:documentation>(figured bass) – Symbols added to a bass line that indicate harmony. Used to improvise a chordal accompaniment. Sometimes called Generalbass, thoroughbass, or basso continuo.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.fLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="harm">
    <xs:annotation>
      <xs:documentation>(harmony) – An indication of harmony, e.g., chord names, tablature grids, harmonic analysis, figured bass.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.graphicprimitiveLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.figbassLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.harm.log.attributes"/>
      <xs:attributeGroup ref="mei:att.harm.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.harm.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.harm.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.lyrics.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyrics.log.attributes">
    <xs:attributeGroup ref="mei:att.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.layerident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.lyrics.vis.attributes">
    <xs:attributeGroup ref="mei:att.placement.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.verse.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.verse.log.attributes">
    <xs:attributeGroup ref="mei:att.verse.log.attribute.refrain"/>
    <xs:attributeGroup ref="mei:att.verse.log.attribute.rhythm"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.verse.log.attribute.refrain">
    <xs:attribute name="refrain" type="mei:data.BOOLEAN">
      <xs:annotation>
        <xs:documentation>Used to indicate a common, usually centered, refrain.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.verse.log.attribute.rhythm">
    <xs:attribute name="rhythm" type="xs:string">
      <xs:annotation>
        <xs:documentation>Used to specify a rhythm for the lyric syllables that differs from that of the notes on the staff, e.g. '4,4,4,4' when the rhythm of the notes is '4.,8,4.,8'.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.verse.vis.attributes">
    <xs:attributeGroup ref="mei:att.color.attributes"/>
    <xs:attributeGroup ref="mei:att.typography.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.to.attributes"/>
    <xs:attributeGroup ref="mei:att.visualoffset.vo.attributes"/>
    <xs:attributeGroup ref="mei:att.xy.attributes"/>
  </xs:attributeGroup>
  <xs:group name="model.lyricsLike">
    <xs:sequence>
      <xs:element ref="mei:lyrics"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lyricsLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:lyrics"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lyricsLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:lyrics"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lyricsLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:lyrics"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lyricsLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:lyrics"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lyricsLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:lyrics"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.sylLike">
    <xs:sequence>
      <xs:element ref="mei:syl"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.verseLike">
    <xs:sequence>
      <xs:element ref="mei:verse"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="lyrics">
    <xs:annotation>
      <xs:documentation>Vocally performed 'text' of a musical composition, such as a song or opera.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.verseLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.lyrics.log.attributes"/>
      <xs:attributeGroup ref="mei:att.lyrics.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.lyrics.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="verse">
    <xs:annotation>
      <xs:documentation>Lyric verse.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element ref="mei:dir"/>
          <xs:element ref="mei:dynam"/>
          <xs:element ref="mei:tempo"/>
          <xs:element ref="mei:space"/>
        </xs:choice>
        <xs:choice maxOccurs="unbounded">
          <xs:group ref="mei:model.sylLike"/>
          <xs:group ref="mei:model.appLike"/>
        </xs:choice>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.lbLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.verse.log.attributes"/>
      <xs:attributeGroup ref="mei:att.verse.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.verse.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.channelized.attributes">
    <xs:attributeGroup ref="mei:att.channelized.attribute.midi.channel"/>
    <xs:attributeGroup ref="mei:att.channelized.attribute.midi.duty"/>
    <xs:attributeGroup ref="mei:att.channelized.attribute.midi.port"/>
    <xs:attributeGroup ref="mei:att.channelized.attribute.midi.track"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.channelized.attribute.midi.channel">
    <xs:attribute name="midi.channel" type="mei:data.MIDICHANNEL">
      <xs:annotation>
        <xs:documentation>Records a MIDI channel value.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.channelized.attribute.midi.duty">
    <xs:attribute name="midi.duty" type="mei:data.PERCENT">
      <xs:annotation>
        <xs:documentation>Specifies the 'on' part of the duty cycle as a percentage of a note's duration.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.channelized.attribute.midi.port">
    <xs:attribute name="midi.port" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>Sets the MIDI port value.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.channelized.attribute.midi.track">
    <xs:attribute name="midi.track" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Sets the MIDI track.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midi.anl.attributes">
    <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midi.event.attributes">
    <xs:attributeGroup ref="mei:att.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.layerident.attributes"/>
    <xs:attributeGroup ref="mei:att.timestamp.musical.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midi.log.attributes">
    <xs:attributeGroup ref="mei:att.staffident.attributes"/>
    <xs:attributeGroup ref="mei:att.layerident.attributes"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midiinstrument.attributes">
    <xs:attributeGroup ref="mei:att.midiinstrument.attribute.midi.instrnum"/>
    <xs:attributeGroup ref="mei:att.midiinstrument.attribute.midi.instrname"/>
    <xs:attributeGroup ref="mei:att.midiinstrument.attribute.midi.pan"/>
    <xs:attributeGroup ref="mei:att.midiinstrument.attribute.midi.volume"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midiinstrument.attribute.midi.instrnum">
    <xs:attribute name="midi.instrnum" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>Sets the MIDI instrument number.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midiinstrument.attribute.midi.instrname">
    <xs:attribute name="midi.instrname" type="mei:data.MIDINAMES">
      <xs:annotation>
        <xs:documentation>Provides a General MIDI label for the MIDI instrument.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midiinstrument.attribute.midi.pan">
    <xs:attribute name="midi.pan" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>Sets the instrument's position in a stereo field. Values of 0 and 1 both pan left, 127 pans right, and 64 pans to the center.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midiinstrument.attribute.midi.volume">
    <xs:attribute name="midi.volume" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>Sets the instrument's volume.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midinumber.attributes">
    <xs:attributeGroup ref="mei:att.midinumber.attribute.num"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midinumber.attribute.num">
    <xs:attribute name="num" use="required" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>MIDI number in the range set by data.MIDIVALUE.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.miditempo.attributes">
    <xs:attributeGroup ref="mei:att.miditempo.attribute.midi.bpm"/>
    <xs:attributeGroup ref="mei:att.miditempo.attribute.midi.mspb"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.miditempo.attribute.midi.bpm">
    <xs:attribute name="midi.bpm" type="mei:data.MIDIBPM">
      <xs:annotation>
        <xs:documentation>Captures the number of *quarter notes* per minute. In MIDI, a beat is always defined as a quarter note, *not the numerator of the time signature or the metronomic indication*.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.miditempo.attribute.midi.mspb">
    <xs:attribute name="midi.mspb" type="mei:data.MIDIMSPB">
      <xs:annotation>
        <xs:documentation>Records the number of microseconds per *quarter note*. In MIDI, a beat is always defined as a quarter note, *not the numerator of the time signature or the metronomic indication*. At 120 quarter notes per minute, each quarter note will last 500,000 microseconds.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midivalue.attributes">
    <xs:attributeGroup ref="mei:att.midivalue.attribute.val"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midivalue.attribute.val">
    <xs:attribute name="val" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>MIDI number.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midivalue2.attributes">
    <xs:attributeGroup ref="mei:att.midivalue2.attribute.val2"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midivalue2.attribute.val2">
    <xs:attribute name="val2" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>MIDI number.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midivelocity.attributes">
    <xs:attributeGroup ref="mei:att.midivelocity.attribute.vel"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.midivelocity.attribute.vel">
    <xs:attribute name="vel" type="mei:data.MIDIVALUE">
      <xs:annotation>
        <xs:documentation>MIDI Note-on/off velocity.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timebase.attributes">
    <xs:attributeGroup ref="mei:att.timebase.attribute.ppq"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.timebase.attribute.ppq">
    <xs:attribute name="ppq" type="xs:positiveInteger">
      <xs:annotation>
        <xs:documentation>Indicates the number of pulses (sometimes referred to as ticks or divisions) per quarter note. Unlike MIDI, MEI permits different values for a score and individual staves.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.midiLike">
    <xs:sequence>
      <xs:element ref="mei:midi"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.midiLike_alternation">
    <xs:sequence>
      <xs:element ref="mei:midi"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.midiLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:midi"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.midiLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:midi"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.midiLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:midi"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.midiLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:midi"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="cc">
    <xs:annotation>
      <xs:documentation>(control change) – MIDI parameter/control change.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attributeGroup ref="mei:att.midinumber.attributes"/>
      <xs:attributeGroup ref="mei:att.midivalue.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="chan">
    <xs:annotation>
      <xs:documentation>(channel) – MIDI channel assignment.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attribute name="num" use="required" type="mei:data.MIDICHANNEL">
        <xs:annotation>
          <xs:documentation>MIDI number in the range set by data.MIDICHANNEL.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="chanPr">
    <xs:annotation>
      <xs:documentation>(channel pressure) – MIDI channel pressure/after touch.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attributeGroup ref="mei:att.midinumber.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="cue">
    <xs:annotation>
      <xs:documentation>MIDI cue point.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="hex">
    <xs:annotation>
      <xs:documentation>Arbitrary MIDI data in hexadecimal form.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="instrDef">
    <xs:annotation>
      <xs:documentation>(instrument definition) – MIDI instrument declaration.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.channelized.attributes"/>
      <xs:attributeGroup ref="mei:att.midiinstrument.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="instrGrp">
    <xs:annotation>
      <xs:documentation>(instrument group) – Collects MIDI instrument definitions.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:group maxOccurs="unbounded" ref="mei:model.instrDefLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="metaText">
    <xs:annotation>
      <xs:documentation>MIDI text meta-event.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="midi">
    <xs:annotation>
      <xs:documentation>Container for elements that contain information useful when generating MIDI output.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="mei:cc"/>
        <xs:element ref="mei:chan"/>
        <xs:element ref="mei:chanPr"/>
        <xs:element ref="mei:cue"/>
        <xs:element ref="mei:hex"/>
        <xs:element ref="mei:metaText"/>
        <xs:element ref="mei:noteOff"/>
        <xs:element ref="mei:noteOn"/>
        <xs:element ref="mei:port"/>
        <xs:element ref="mei:prog"/>
        <xs:element ref="mei:seqNum"/>
        <xs:element ref="mei:trkName"/>
        <xs:element ref="mei:vel"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.log.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.anl.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="noteOff">
    <xs:annotation>
      <xs:documentation>MIDI note-off event.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attributeGroup ref="mei:att.midinumber.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="noteOn">
    <xs:annotation>
      <xs:documentation>MIDI note-on event.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attributeGroup ref="mei:att.midinumber.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="port">
    <xs:annotation>
      <xs:documentation>MIDI port.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attributeGroup ref="mei:att.midinumber.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="prog">
    <xs:annotation>
      <xs:documentation>(program) – MIDI program change.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attributeGroup ref="mei:att.midinumber.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="seqNum">
    <xs:annotation>
      <xs:documentation>(sequence number) – MIDI sequence number.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attribute name="num" use="required">
        <xs:annotation>
          <xs:documentation>Number in the range 0-65535.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:nonNegativeInteger">
            <xs:maxInclusive value="65535"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="trkName">
    <xs:annotation>
      <xs:documentation>(track name) – MIDI track/sequence name.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="vel">
    <xs:annotation>
      <xs:documentation>(velocity) – MIDI Note-on/off velocity.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.midi.event.attributes"/>
      <xs:attributeGroup ref="mei:att.midinumber.attributes"/>
      <xs:attribute name="form" use="required">
        <xs:annotation>
          <xs:documentation>Indicates whether this is note-on or note-off velocity data.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="on">
              <xs:annotation>
                <xs:documentation/>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="off">
              <xs:annotation>
                <xs:documentation/>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:group name="model.addressPart">
    <xs:choice>
      <xs:group ref="mei:model.geogNamePart"/>
      <xs:element ref="mei:postBox"/>
      <xs:element ref="mei:postCode"/>
      <xs:element ref="mei:street"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.addressPart_alternation">
    <xs:choice>
      <xs:group ref="mei:model.geogNamePart_alternation"/>
      <xs:element ref="mei:postBox"/>
      <xs:element ref="mei:postCode"/>
      <xs:element ref="mei:street"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.addressPart_sequence">
    <xs:sequence>
      <xs:group ref="mei:model.geogNamePart_sequence"/>
      <xs:element ref="mei:postBox"/>
      <xs:element ref="mei:postCode"/>
      <xs:element ref="mei:street"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressPart_sequenceOptional">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.geogNamePart_sequenceOptional"/>
      <xs:element minOccurs="0" ref="mei:postBox"/>
      <xs:element minOccurs="0" ref="mei:postCode"/>
      <xs:element minOccurs="0" ref="mei:street"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressPart_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.geogNamePart_sequenceOptionalRepeatable"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:postBox"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:postCode"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:street"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.addressPart_sequenceRepeatable">
    <xs:sequence>
      <xs:group maxOccurs="unbounded" ref="mei:model.geogNamePart_sequenceRepeatable"/>
      <xs:element maxOccurs="unbounded" ref="mei:postBox"/>
      <xs:element maxOccurs="unbounded" ref="mei:postCode"/>
      <xs:element maxOccurs="unbounded" ref="mei:street"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.geogNamePart">
    <xs:choice>
      <xs:element ref="mei:bloc"/>
      <xs:element ref="mei:country"/>
      <xs:element ref="mei:district"/>
      <xs:element ref="mei:geogFeat"/>
      <xs:element ref="mei:region"/>
      <xs:element ref="mei:settlement"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.geogNamePart_alternation">
    <xs:choice>
      <xs:element ref="mei:bloc"/>
      <xs:element ref="mei:country"/>
      <xs:element ref="mei:district"/>
      <xs:element ref="mei:geogFeat"/>
      <xs:element ref="mei:region"/>
      <xs:element ref="mei:settlement"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.geogNamePart_sequence">
    <xs:sequence>
      <xs:element ref="mei:bloc"/>
      <xs:element ref="mei:country"/>
      <xs:element ref="mei:district"/>
      <xs:element ref="mei:geogFeat"/>
      <xs:element ref="mei:region"/>
      <xs:element ref="mei:settlement"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.geogNamePart_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:bloc"/>
      <xs:element minOccurs="0" ref="mei:country"/>
      <xs:element minOccurs="0" ref="mei:district"/>
      <xs:element minOccurs="0" ref="mei:geogFeat"/>
      <xs:element minOccurs="0" ref="mei:region"/>
      <xs:element minOccurs="0" ref="mei:settlement"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.geogNamePart_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:bloc"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:country"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:district"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:geogFeat"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:region"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:settlement"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.geogNamePart_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:bloc"/>
      <xs:element maxOccurs="unbounded" ref="mei:country"/>
      <xs:element maxOccurs="unbounded" ref="mei:district"/>
      <xs:element maxOccurs="unbounded" ref="mei:geogFeat"/>
      <xs:element maxOccurs="unbounded" ref="mei:region"/>
      <xs:element maxOccurs="unbounded" ref="mei:settlement"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.agent">
    <xs:choice>
      <xs:element ref="mei:corpName"/>
      <xs:element ref="mei:persName"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike.agent_alternation">
    <xs:choice>
      <xs:element ref="mei:corpName"/>
      <xs:element ref="mei:persName"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike.agent_sequence">
    <xs:sequence>
      <xs:element ref="mei:corpName"/>
      <xs:element ref="mei:persName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.agent_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:corpName"/>
      <xs:element minOccurs="0" ref="mei:persName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.agent_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:corpName"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:persName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.agent_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:corpName"/>
      <xs:element maxOccurs="unbounded" ref="mei:persName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.geogName">
    <xs:sequence>
      <xs:element ref="mei:geogName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.geogName_alternation">
    <xs:sequence>
      <xs:element ref="mei:geogName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.geogName_sequence">
    <xs:sequence>
      <xs:element ref="mei:geogName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.geogName_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:geogName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.geogName_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:geogName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.geogName_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:geogName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.label">
    <xs:choice>
      <xs:element ref="mei:periodName"/>
      <xs:element ref="mei:styleName"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike.label_alternation">
    <xs:choice>
      <xs:element ref="mei:periodName"/>
      <xs:element ref="mei:styleName"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike.label_sequence">
    <xs:sequence>
      <xs:element ref="mei:periodName"/>
      <xs:element ref="mei:styleName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.label_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:periodName"/>
      <xs:element minOccurs="0" ref="mei:styleName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.label_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:periodName"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:styleName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.label_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:periodName"/>
      <xs:element maxOccurs="unbounded" ref="mei:styleName"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.place">
    <xs:choice>
      <xs:group ref="mei:model.repositoryLike"/>
      <xs:group ref="mei:model.nameLike.geogName"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike.place_alternation">
    <xs:choice>
      <xs:group ref="mei:model.repositoryLike_alternation"/>
      <xs:group ref="mei:model.nameLike.geogName_alternation"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.nameLike.place_sequence">
    <xs:sequence>
      <xs:group ref="mei:model.repositoryLike_sequence"/>
      <xs:group ref="mei:model.nameLike.geogName_sequence"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.place_sequenceOptional">
    <xs:sequence>
      <xs:group minOccurs="0" ref="mei:model.repositoryLike_sequenceOptional"/>
      <xs:group minOccurs="0" ref="mei:model.nameLike.geogName_sequenceOptional"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.place_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.repositoryLike_sequenceOptionalRepeatable"/>
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.nameLike.geogName_sequenceOptionalRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.nameLike.place_sequenceRepeatable">
    <xs:sequence>
      <xs:group maxOccurs="unbounded" ref="mei:model.repositoryLike_sequenceRepeatable"/>
      <xs:group maxOccurs="unbounded" ref="mei:model.nameLike.geogName_sequenceRepeatable"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.persNamePart">
    <xs:choice>
      <xs:element ref="mei:addName"/>
      <xs:element ref="mei:famName"/>
      <xs:element ref="mei:foreName"/>
      <xs:element ref="mei:genName"/>
      <xs:element ref="mei:nameLink"/>
      <xs:element ref="mei:roleName"/>
    </xs:choice>
  </xs:group>
  <xs:element name="addName">
    <xs:annotation>
      <xs:documentation>(additional name) – Contains an additional name component, such as a nickname, epithet, or alias, or any other descriptive phrase used within a personal name.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="bloc">
    <xs:annotation>
      <xs:documentation>Contains the name of a geo-political unit consisting of two or more nation states or countries.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="corpName">
    <xs:annotation>
      <xs:documentation>(corporate name) – Identifies an organization or group of people that acts as a single entity.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="country">
    <xs:annotation>
      <xs:documentation>Contains the name of a geo-political unit, such as a nation, country, colony, or commonwealth, larger than or administratively superior to a region and smaller than a bloc.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="district">
    <xs:annotation>
      <xs:documentation>Contains the name of any kind of subdivision of a settlement, such as a parish, ward, or other administrative or geographic unit.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="famName">
    <xs:annotation>
      <xs:documentation>(family name) – Contains a family (inherited) name, as opposed to a given, baptismal, or nick name.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="foreName">
    <xs:annotation>
      <xs:documentation>Contains a forename, given or baptismal name.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="genName">
    <xs:annotation>
      <xs:documentation>(generational name component) – Contains a name component used to distinguish otherwise similar names on the basis of the relative ages or generations of the persons named.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="geogFeat">
    <xs:annotation>
      <xs:documentation>(geographical feature name) – Contains a common noun identifying a geographical feature.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="geogName">
    <xs:annotation>
      <xs:documentation>(geographic name) – The proper noun designation for a place, natural feature, or political jurisdiction.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="nameLink">
    <xs:annotation>
      <xs:documentation>(name link) – Contains a connecting phrase or link used within a name but not regarded as part of it, such as "van der" or "of", "from", etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="periodName">
    <xs:annotation>
      <xs:documentation>(period name) – A label that describes a period of time, such as 'Baroque' or '3rd Style period'.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="persName">
    <xs:annotation>
      <xs:documentation>(personal name) – Designation for an individual, including any or all of that individual's forenames, surnames, honorific titles, and added names.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
        <xs:group ref="mei:model.persNamePart"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="postBox">
    <xs:annotation>
      <xs:documentation>(postal box or post office box) contains a number or other identifier for some postal delivery point other than a street address.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="postCode">
    <xs:annotation>
      <xs:documentation>(postal code) contains a numerical or alphanumeric code used as part of a postal address to simplify sorting or delivery of mail.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="region">
    <xs:annotation>
      <xs:documentation>Contains the name of an administrative unit such as a state, province, or county, larger than a settlement, but smaller than a country.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="roleName">
    <xs:annotation>
      <xs:documentation>(role name) – Contains a name component which indicates that the referent has a particular role or position in society, such as an official title or rank.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="settlement">
    <xs:annotation>
      <xs:documentation>Contains the name of a settlement such as a city, town, or village identified as a single geo-political or administrative unit.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="street">
    <xs:annotation>
      <xs:documentation>full street address including any name or number identifying a building as well as the name of the street or route on which it is located.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="styleName">
    <xs:annotation>
      <xs:documentation>(style name) – A label for a characteristic style of writing or performance, such as 'bebop' or 'rock-n-roll'.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.edit.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.name.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.alignment.attributes">
    <xs:attributeGroup ref="mei:att.alignment.attribute.when"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.alignment.attribute.when">
    <xs:attribute name="when" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Indicates the point of occurrence of this feature along a time line. Its value must be the ID of a when element elsewhere in the document.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:element name="avFile">
    <xs:annotation>
      <xs:documentation>(audio/video file) – References an external digital audio or video file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:clip"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.bibl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.internetmedia.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="clip">
    <xs:annotation>
      <xs:documentation>Defines a time segment of interest within a recording or within a digital audio or video file.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:avFile"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:when"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.mediabounds.attributes"/>
      <xs:attributeGroup ref="mei:att.startid.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="performance">
    <xs:annotation>
      <xs:documentation>A presentation of one or more musical works.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:recording"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="recording">
    <xs:annotation>
      <xs:documentation>A recorded performance.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:avFile"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:when"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:clip"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.mediabounds.attributes"/>
      <xs:attributeGroup ref="mei:att.startid.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="when">
    <xs:annotation>
      <xs:documentation>Indicates a point in time either absolutely (using the absolute attribute), or relative to another when element (using the since, interval and inttype attributes).</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.datapointing.attributes"/>
      <xs:attribute name="absolute">
        <xs:annotation>
          <xs:documentation>Provides an absolute value for the time point.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="interval">
        <xs:annotation>
          <xs:documentation>Specifies the time interval between this time point and the one designated by the since attribute. This attribute can only be interpreted meaningfully in conjunction with the inttype attribute.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:union memberTypes="xs:time">
            <xs:simpleType>
              <xs:restriction base="xs:decimal">
                <xs:minInclusive value="1"/>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="abstype" type="mei:data.BETYPE">
        <xs:annotation>
          <xs:documentation>Specifies the kind of values used in the absolute attribute.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="inttype" type="mei:data.BETYPE">
        <xs:annotation>
          <xs:documentation>Specifies the kind of values used in the interval attribute.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
      <xs:attribute name="since" type="mei:data.URI">
        <xs:annotation>
          <xs:documentation>Identifies the reference point for determining the time of the current when element, which is obtained by adding the interval to the time of the reference point. The value should be the ID of another when element within the same parent element. If the since attribute is omitted and the absolute attribute is not specified, then the reference point is understood to be the immediately preceding when element.</xs:documentation>
        </xs:annotation>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:group name="model.locrefLike">
    <xs:choice>
      <xs:element ref="mei:ptr"/>
      <xs:element ref="mei:ref"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.locrefLike_alternation">
    <xs:choice>
      <xs:element ref="mei:ptr"/>
      <xs:element ref="mei:ref"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.locrefLike_sequence">
    <xs:sequence>
      <xs:element ref="mei:ptr"/>
      <xs:element ref="mei:ref"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.locrefLike_sequenceOptional">
    <xs:sequence>
      <xs:element minOccurs="0" ref="mei:ptr"/>
      <xs:element minOccurs="0" ref="mei:ref"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.locrefLike_sequenceOptionalRepeatable">
    <xs:sequence>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:ptr"/>
      <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:ref"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.locrefLike_sequenceRepeatable">
    <xs:sequence>
      <xs:element maxOccurs="unbounded" ref="mei:ptr"/>
      <xs:element maxOccurs="unbounded" ref="mei:ref"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="ptr">
    <xs:annotation>
      <xs:documentation>(pointer) – Defines a pointer to another location, using only attributes to describe the destination.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.internetmedia.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="ref">
    <xs:annotation>
      <xs:documentation>(reference) – Defines a reference to another location that may contain text and sub-elements to describe the destination.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.internetmedia.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.pointing.attributes"/>
      <xs:attributeGroup ref="mei:att.targeteval.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.note.ges.tablature.attributes">
    <xs:attributeGroup ref="mei:att.note.ges.tablature.attribute.tab.fret"/>
    <xs:attributeGroup ref="mei:att.note.ges.tablature.attribute.tab.string"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.tablature.attribute.tab.fret">
    <xs:attribute name="tab.fret" type="mei:data.FRETNUMBER">
      <xs:annotation>
        <xs:documentation>Records the fret at which a string should be stopped.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.note.ges.tablature.attribute.tab.string">
    <xs:attribute name="tab.string" type="mei:data.STRINGNUMBER">
      <xs:annotation>
        <xs:documentation>Records which string is to be played.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.ges.tablature.attributes">
    <xs:attributeGroup ref="mei:att.staffDef.ges.tablature.attribute.tab.strings"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.staffDef.ges.tablature.attribute.tab.strings">
    <xs:attribute name="tab.strings">
      <xs:annotation>
        <xs:documentation>Provides a *written* pitch and octave for each open string or course of strings.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction>
          <xs:simpleType>
            <xs:list>
              <xs:simpleType>
                <xs:restriction base="xs:token">
                  <xs:pattern value="[a-g][0-9](s|f|ss|x|ff|xs|sx|ts|tf|n|nf|ns|su|sd|fu|fd|nu|nd|1qf|3qf|1qs|3qs)?([a-g][0-9](s|f|ss|x|ff|xs|sx|ts|tf|n|nf|ns|su|sd|fu|fd|nu|nd|1qf|3qf|1qs|3qs)?)*"/>
                </xs:restriction>
              </xs:simpleType>
            </xs:list>
          </xs:simpleType>
          <xs:minLength value="1"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.backLike">
    <xs:sequence>
      <xs:element ref="mei:back"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.divLike">
    <xs:sequence>
      <xs:element ref="mei:div"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.frontLike">
    <xs:sequence>
      <xs:element ref="mei:front"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.lgLike">
    <xs:sequence>
      <xs:element ref="mei:lg"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.listLike">
    <xs:choice>
      <xs:element ref="mei:biblList"/>
      <xs:element ref="mei:castList"/>
      <xs:element ref="mei:eventList"/>
      <xs:element ref="mei:list"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.lLike">
    <xs:sequence>
      <xs:element ref="mei:l"/>
    </xs:sequence>
  </xs:group>
  <xs:group name="model.quoteLike">
    <xs:sequence>
      <xs:element ref="mei:quote"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="back">
    <xs:annotation>
      <xs:documentation>(back matter) – Contains any appendixes, advertisements, indexes, etc. following the main body of a musical text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.frontPart"/>
        <xs:group ref="mei:model.milestoneLike.text"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="front">
    <xs:annotation>
      <xs:documentation>(front matter) – Bundles prefatory text found before the start of the musical text.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.divLike"/>
        <xs:group ref="mei:model.frontPart"/>
        <xs:group ref="mei:model.milestoneLike.text"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="l">
    <xs:annotation>
      <xs:documentation>(line of text) – Contains a single line of text within a line group.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="lg">
    <xs:annotation>
      <xs:documentation>(line group) – May be used for any section of text that is organized as a group of lines; however, it is most often used for a group of verse lines functioning as a formal unit, e.g. a stanza, refrain, verse paragraph, etc.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:choice>
          <xs:group ref="mei:model.lLike"/>
          <xs:group ref="mei:model.lgLike"/>
        </xs:choice>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.lLike"/>
          <xs:group ref="mei:model.lgLike"/>
        </xs:choice>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.declaring.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="li">
    <xs:annotation>
      <xs:documentation>(list item) – Single item in a &lt;list&gt;.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textcomponentLike"/>
        <xs:group ref="mei:model.textphraseLike"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="list">
    <xs:annotation>
      <xs:documentation>A formatting element that contains a series of items separated from one another and arranged in a linear, often vertical, sequence.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.headLike"/>
        <xs:sequence minOccurs="0" maxOccurs="unbounded">
          <xs:group minOccurs="0" ref="mei:model.labelLike"/>
          <xs:element ref="mei:li"/>
        </xs:sequence>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
      <xs:attribute name="form">
        <xs:annotation>
          <xs:documentation>Used to indicate the format of a list. In a "simple" list, li elements are not numbered or bulleted. In a "marked" list, the sequence of the list items is not critical, and a bullet, box, dash, or other character is displayed at the start of each item. In an "ordered" list, the sequence of the items is important, and each li is lettered or numbered. Style sheet functions should be used to specify the mark or numeration system for each li.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="simple">
              <xs:annotation>
                <xs:documentation>Items are not numbered or bulleted.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="marked">
              <xs:annotation>
                <xs:documentation>Bullet, box, dash, or other character is displayed before each item.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="ordered">
              <xs:annotation>
                <xs:documentation>Each item is numbered or lettered.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="type">
        <xs:annotation>
          <xs:documentation>Captures the nature of the content of a list.
Suggested values include: 1] gloss; 2] index; 3] instructions; 4] litany; 5] syllogism</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:union memberTypes="xs:NMTOKEN">
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="gloss">
                  <xs:annotation>
                    <xs:documentation>Each list item glosses some term or concept, which is given by a label element preceding the list item.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="index">
                  <xs:annotation>
                    <xs:documentation>Each list item is an entry in an index such as the alphabetical topical index at the back of a print volume.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="instructions">
                  <xs:annotation>
                    <xs:documentation>Each list item is a step in a sequence of instructions, as in a recipe.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="litany">
                  <xs:annotation>
                    <xs:documentation>Each list item is one of a sequence of petitions, supplications or invocations, typically in a religious ritual.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
            <xs:simpleType>
              <xs:restriction base="xs:token">
                <xs:enumeration value="syllogism">
                  <xs:annotation>
                    <xs:documentation>Each list item is part of an argument consisting of two or more propositions and a final conclusion derived from them.</xs:documentation>
                  </xs:annotation>
                </xs:enumeration>
              </xs:restriction>
            </xs:simpleType>
          </xs:union>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="quote">
    <xs:annotation>
      <xs:documentation>(block quote) – A formatting element that designates an extended quotation; that is, a passage attributed to a source external to the text and normally set off from the text by spacing or other typographic distinction.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.paracontentPart"/>
        <xs:element ref="mei:p"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:attributeGroup name="att.altsym.attributes">
    <xs:attributeGroup ref="mei:att.altsym.attribute.altsym"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.altsym.attribute.altsym">
    <xs:attribute name="altsym" type="mei:data.URI">
      <xs:annotation>
        <xs:documentation>Provides a way of pointing to a user-defined symbol. It must contain an ID of a &lt;symbolDef&gt; element elsewhere in the document.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:group name="model.graphicprimitiveLike">
    <xs:choice>
      <xs:element ref="mei:anchoredText"/>
      <xs:element ref="mei:curve"/>
      <xs:element ref="mei:line"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.symbolTableLike">
    <xs:sequence>
      <xs:element ref="mei:symbolTable"/>
    </xs:sequence>
  </xs:group>
  <xs:element name="anchoredText">
    <xs:annotation>
      <xs:documentation>Container for text that is fixed to a particular page location, regardless of changes made to the layout of the measures around it.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:group ref="mei:model.textphraseLike.limited"/>
        <xs:group ref="mei:model.editLike"/>
        <xs:group ref="mei:model.transcriptionLike"/>
      </xs:choice>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.lang.attributes"/>
      <xs:attributeGroup ref="mei:att.startid.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="curve">
    <xs:annotation>
      <xs:documentation>A curved line that cannot be represented by a more specific element, such as a slur.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.color.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.curvature.attributes"/>
      <xs:attributeGroup ref="mei:att.curverend.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.startendid.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
      <xs:attributeGroup ref="mei:att.visualoffset2.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
      <xs:attributeGroup ref="mei:att.xy2.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="line">
    <xs:annotation>
      <xs:documentation>A visual line that cannot be represented by a more specific; i.e., semantic, element.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.textphraseLike.limited"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.line.ges.attributes"/>
      <xs:attributeGroup ref="mei:att.line.log.attributes"/>
      <xs:attributeGroup ref="mei:att.line.vis.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mapping">
    <xs:annotation>
      <xs:documentation>One or more characters which are related to the parent symbol in some respect, as specified by the type attribute.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.responsibility.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="propName">
    <xs:annotation>
      <xs:documentation>(property name) – Name of a property of the symbol.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attribute name="type" use="required">
        <xs:annotation>
          <xs:documentation>Characterizes the property name.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="unicode">
              <xs:annotation>
                <xs:documentation>A registered Unicode normative or informative property name.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="local">
              <xs:annotation>
                <xs:documentation>A locally defined name.</xs:documentation>
              </xs:annotation>
            </xs:enumeration>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="propValue">
    <xs:annotation>
      <xs:documentation>(property value) – A single property value.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="symbol">
    <xs:annotation>
      <xs:documentation>A reference to a previously defined symbol.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:attributeGroup ref="mei:att.altsym.attributes"/>
      <xs:attributeGroup ref="mei:att.authorized.attributes"/>
      <xs:attributeGroup ref="mei:att.color.attributes"/>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.common.anl.attributes"/>
      <xs:attributeGroup ref="mei:att.facsimile.attributes"/>
      <xs:attributeGroup ref="mei:att.scalable.attributes"/>
      <xs:attributeGroup ref="mei:att.startid.attributes"/>
      <xs:attributeGroup ref="mei:att.typed.attributes"/>
      <xs:attributeGroup ref="mei:att.typography.attributes"/>
      <xs:attributeGroup ref="mei:att.visualoffset.attributes"/>
      <xs:attributeGroup ref="mei:att.xy.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="symbolDef">
    <xs:annotation>
      <xs:documentation>(symbol definition) – Declaration of an individual symbol in a symbolTable.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="mei:symName"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:symProp"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mei:mapping"/>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:group ref="mei:model.graphicprimitiveLike"/>
          <xs:element ref="mei:graphic"/>
        </xs:choice>
        <xs:group minOccurs="0" maxOccurs="unbounded" ref="mei:model.annotLike"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
      <xs:attributeGroup ref="mei:att.coordinated.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="symName">
    <xs:annotation>
      <xs:documentation>(symbol name) – Contains the name of a symbol, expressed following Unicode conventions.</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="symProp">
    <xs:annotation>
      <xs:documentation>(symbol property) – Provides a name and value for some property of the parent symbol.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="mei:propName"/>
        <xs:element ref="mei:propValue"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="symbolTable">
    <xs:annotation>
      <xs:documentation>Contains a set of user-defined symbols.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="mei:symbolDef"/>
      </xs:sequence>
      <xs:attributeGroup ref="mei:att.common.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:group name="model.grmrLike">
    <xs:choice>
      <xs:element ref="mei:vecTrans"/>
      <xs:element ref="mei:mrmr"/>
      <xs:element ref="mei:phonoRealization"/>
    </xs:choice>
  </xs:group>
  <xs:group name="model.vectorLike">
    <xs:sequence>
      <xs:element ref="mei:vecTrans"/>
    </xs:sequence>
  </xs:group>
  <xs:attributeGroup name="att.grammar.analysis.attributes">
    <xs:attributeGroup ref="mei:att.grammar.analysis.attribute.snr"/>
    <xs:attributeGroup ref="mei:att.grammar.analysis.attribute.mnr"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grammar.analysis.attribute.snr">
    <xs:attribute name="snr">
      <xs:annotation>
        <xs:documentation>Syllabic Nuclear Reduction</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="\alpha">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="\beta">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grammar.analysis.attribute.mnr">
    <xs:attribute name="mnr">
      <xs:annotation>
        <xs:documentation>Metasyllabic Nuclear Reduction</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="yes">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
          <xs:enumeration value="no">
            <xs:annotation>
              <xs:documentation/>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grammar.numbering.attributes">
    <xs:attributeGroup ref="mei:att.grammar.numbering.attribute.number"/>
  </xs:attributeGroup>
  <xs:attributeGroup name="att.grammar.numbering.attribute.number">
    <xs:attribute name="number" type="xs:nonNegativeInteger">
      <xs:annotation>
        <xs:documentation>Number of an element used in the analysis</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:attributeGroup>
  <xs:element name="vecTrans">
    <xs:annotation>
      <xs:documentation>Encodes Vector Transcoding of Musical Measures for Modal Monodies</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.grammar.numbering.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="mrmr">
    <xs:annotation>
      <xs:documentation>Encodes the Morphophonological Rythmic and Melodic Rewriting of a musical Sequence</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.grammar.numbering.attributes"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="phonoRealization">
    <xs:annotation>
      <xs:documentation>Encodes the Phonological Realization of a Musical Sequence</xs:documentation>
    </xs:annotation>
    <xs:complexType mixed="true">
      <xs:attributeGroup ref="mei:att.grammar.numbering.attributes"/>
    </xs:complexType>
  </xs:element>
</xs:schema>