save project

my_music.py

@@ -59,7 +59,12 @@ while True:
                             num=len(music_list)-1
                         pygame.mixer.music.load(music_list[num])
                         pygame.mixer.music.play()
-
+                    if x >422 and x<517 and y>350 and y<400:
+                        num-=1
+                        if num>len(music_list)-1:
+                            num=0
+                        pygame.mixer.music.load(music_list[num])
+                        pygame.mixer.music.play()
     if pygame.mixer.music.get_busy() == False:
         
         num +=1