update

mec-teacher/src/main/java/com/ym/mec/teacher/controller/SysMusicScoreAccompanimentController.java

@@ -107,8 +107,8 @@ public class SysMusicScoreAccompanimentController extends BaseController {
         	url = smsa.getUrl();
         	metronomeUrl = smsa.getMetronomeUrl();
         	
-        	smsa.setUrl(smsa.getMetronomeUrl());
-        	smsa.setMetronomeUrl(smsa.getMetronomeUrl());
+        	smsa.setUrl(smsa.getMp3Url());
+        	smsa.setMetronomeUrl(smsa.getMetronomeMp3Url());
         	smsa.setMp3Url(url);
         	smsa.setMetronomeMp3Url(metronomeUrl);
         }