diff --git a/src/renderer/core/music-sheet/backend/index.new.ts b/src/renderer/core/music-sheet/backend/index.new.ts
deleted file mode 100644
index fd283ead..00000000
--- a/src/renderer/core/music-sheet/backend/index.new.ts
+++ /dev/null
@@ -1,200 +0,0 @@
-/**
- * 这里不应该写任何和UI有关的逻辑，只是简单的数据库操作
- *
- * 除了frontend文件夹外，其他任何地方不应该直接调用此处定义的函数
- */
-
-import { isSameMedia } from "@/common/media-util";
-import {
-  getUserPreferenceIDB,
-  setUserPreferenceIDB,
-} from "@/renderer/utils/user-perference";
-import AppDB from "@/shared/app-db/renderer";
-import { getGlobalContext } from "@/shared/global-context/renderer";
-import * as Comlink from "comlink";
-
-// 全部的歌单列表(无详情，只有ID)
-// 星标的歌单信息
-let starredMusicSheets: IMedia.IMediaBase[] = [];
-
-/******************** 方法 ***********************/
-
-export function getAllStarredSheets() {
-  return starredMusicSheets;
-}
-
-/**
- *
- * 查询所有歌单信息（无详情）
- *
- * @returns 全部歌单信息
- */
-export function queryAllSheets() {
-  return AppDB.musicSheet.getAllSheets();
-}
-
-/**
- * 查询所有收藏歌单
- * @returns 收藏歌单信息
- */
-export async function queryAllStarredSheets() {
-  try {
-    starredMusicSheets =
-      (await getUserPreferenceIDB("starredMusicSheets")) || [];
-    return starredMusicSheets;
-  } catch {
-    return [];
-  }
-}
-
-/**
- * 新建歌单
- * @param sheetName 歌单名
- * @returns 新建的歌单信息
- */
-export function addSheet(sheetName: string) {
-  const newSheetId = AppDB.musicSheet.createSheet(sheetName);
-  if (newSheetId) {
-    return newSheetId;
-  } else {
-    throw new Error("新建失败");
-  }
-}
-
-/**
- * 更新歌单信息
- * @param sheetId 歌单ID
- * @param newData 最新的歌单信息
- * @returns
- */
-export async function updateSheet(
-  sheetId: string,
-  newData: Partial<IMusic.IMusicSheetItem>
-) {
-  // try {
-  //   if (!newData) {
-  //     return;
-  //   }
-  //   await musicSheetDB.transaction(
-  //     "readwrite",
-  //     musicSheetDB.sheets,
-  //     async () => {
-  //       musicSheetDB.sheets.update(sheetId, newData);
-  //     }
-  //   );
-  //   musicSheets = produce(musicSheets, (draft) => {
-  //     const currentIndex = draft.findIndex((_) => _.id === sheetId);
-  //     if (currentIndex === -1) {
-  //       draft.push(newData as IMusic.IDBMusicSheetItem);
-  //     } else {
-  //       draft[currentIndex] = {
-  //         ...draft[currentIndex],
-  //         ...newData,
-  //       };
-  //     }
-  //   });
-  // } catch (e) {
-  //   // 更新歌单信息失败
-  //   console.log(e);
-  // }
-}
-
-/**
- * 移除歌单
- * @param sheetId 歌单ID
- * @returns 删除后的ID
- */
-export function removeSheet(sheetId: string) {
-  return AppDB.musicSheet.removeSheet(sheetId);
-}
-
-/**
- * 清空所有音乐
- * @param sheetId 歌单ID
- * @returns 删除后的ID
- */
-export function clearSheet(sheetId: string) {
-  return AppDB.musicSheet.removeAllMusic(sheetId);
-}
-
-/**
- * 收藏歌单
- * @param sheet
- */
-export async function starMusicSheet(sheet: IMedia.IMediaBase) {
-  const newSheets = [...starredMusicSheets, sheet];
-  await setUserPreferenceIDB("starredMusicSheets", newSheets);
-  starredMusicSheets = newSheets;
-}
-
-/**
- * 取消收藏歌单
- * @param sheet
- */
-export async function unstarMusicSheet(sheet: IMedia.IMediaBase) {
-  const newSheets = starredMusicSheets.filter(
-    (item) => !isSameMedia(item, sheet)
-  );
-  await setUserPreferenceIDB("starredMusicSheets", newSheets);
-  starredMusicSheets = newSheets;
-}
-
-/**
- * 收藏歌单排序
- */
-
-export async function setStarredMusicSheets(sheets: IMedia.IMediaBase[]) {
-  await setUserPreferenceIDB("starredMusicSheets", sheets);
-  starredMusicSheets = sheets;
-}
-
-/**************************** 歌曲相关方法 ************************/
-
-/**
- * 添加歌曲到歌单
- * @param musicItems
- * @param sheetId
- * @returns
- */
-export function addMusicToSheet(
-  musicItems: IMusic.IMusicItem | IMusic.IMusicItem[],
-  sheetId: string
-) {
-  return AppDB.musicSheet.addMusicToSheet(musicItems, sheetId);
-}
-
-/**
- * 从歌单内移除歌曲
- * @param musicItems 要移除的歌曲
- * @param sheetId 歌单ID
- * @returns
- */
-export function removeMusicFromSheet(
-  musicItems: IMusic.IMusicItem | IMusic.IMusicItem[],
-  sheetId: string
-) {
-  AppDB.musicSheet.removeMusicFromSheet(musicItems, sheetId);
-}
-
-/** 获取歌单内的歌曲详细信息 */
-export function getSheetItemMusicList(sheetId: string): IMusic.IMusicItem[] {
-  return AppDB.musicSheet.getSheetMusicList(sheetId);
-}
-
-const worker = Comlink.wrap(new Worker(getGlobalContext().workersPath.db));
-
-export async function getSheetItemDetail(
-  sheetId: string
-): Promise<IMusic.IMusicSheetItem | null> {
-  const a = Date.now();
-  // @ts-ignore
-  const R = await worker.getSheetItem(sheetId);
-  // const R = AppDB.musicSheet.getSheetItem(sheetId);
-  console.log(Date.now() - a);
-  return R;
-}
-
-/** 导出所有歌单信息 */
-export async function exportAllSheetDetails() {
-  throw new Error("not implemented");
-}