More lints

music21/chord/__init__.py

@@ -42,7 +42,7 @@
 
 if t.TYPE_CHECKING:
     from music21 import stream
-
+    from music21.style import Style
 
 environLocal = environment.Environment('chord')
 
@@ -4195,9 +4195,12 @@ def setColor(self, value, pitchTarget=None):
         # assign to base
         if pitchTarget is None and self._notes:
             chord_style = self.style
+            if t.TYPE_CHECKING:
+                assert isintance(chord_style, Style)
             chord_style.color = value
             for n in self._notes:
-                n.style.color = value
+                n_style = n.style
+                n_style.color = value
 
             return
         elif isinstance(pitchTarget, str):

music21/derivation.py

@@ -243,6 +243,8 @@ def chain(self) -> Generator[base.Music21Object, None, None]:
         orig: base.Music21Object | None = self.origin
         while orig is not None:
             yield orig
+            if t.TYPE_CHECKING:
+                assert orig is not None
             orig = orig.derivation.origin
 
     @property

music21/note.py

@@ -43,6 +43,8 @@
     from music21 import chord
     from music21 import instrument
     from music21 import percussion
+    from music21.style import Style
+
     _NotRestType = t.TypeVar('_NotRestType', bound='NotRest')
 
 environLocal = environment.Environment('note')
@@ -2095,7 +2097,10 @@ def testBasic(self):
             b = note.Note()
             b.quarterLength = qLen
             b.name = pitchName
-            b.style.color = '#FF00FF'
+            b_style = b.style
+            if t.TYPE_CHECKING:
+                assert isinstance(b_style, Style)
+            b_style.color = '#FF00FF'
             a.append(b)
 
         if self.show: