save project

my_music.py

@@ -65,7 +65,7 @@ while True:
                     play_button = stop_img
                     play_button = stop_img
                 if x >400 and x < 520 and y >350 and y < 450:
                 if x >400 and x < 520 and y >350 and y < 450:
                     num+=1
                     num+=1
-                    if num <-1:
+                    if num >=len(musicList):
                        num=0
                        num=0
                     pygame.mixer.music.load(musicList[num])
                     pygame.mixer.music.load(musicList[num])
                     pygame.mixer.music.play()
                     pygame.mixer.music.play()