单声轨多声部计算节拍器修改

src/helpers/formateMusic.ts

@@ -509,7 +509,6 @@ export const onlyVisible = (xml: string, partIndex: number, resourceType?: strin
 							break;
 						}
 					}
-					state.isSingleMutliTrack = part.getElementsByTagName('backup').length > 0 ? true : false;
 				}
 				const barlines = part.getElementsByTagName("barline");
 				const lastParent = barlines[barlines.length - 1]?.parentElement;