save project

my_music.py

@@ -51,8 +51,8 @@ while True:
                 if x >120 and x <220 and y > 350 and y <400:
                     num -=1
                     if num <0:
-                        num = len(music_list)-1
-                    pygame.mixer.music.load(music_list[num])
+                        num = len(filelist)-1
+                    pygame.mixer.music.load(filelist[num])
                     pygame.mixer.music.play()
                     click=0
                     play_button=stop_img