auto save

my_music.py

@@ -63,7 +63,7 @@ while True:
 
                 if x>420 and x<520 and y>350 and y<450:
                     n+=1
-                    if n>3:
+                    if n>len(mz)-1:
                         n=0
                     pygame.mixer.music.load(aaa+'//'+mz[n])
                     pygame.mixer.music.play()