save project

my_music.py

@@ -57,7 +57,11 @@ while True:
                     else:
                     else:
                         play_button = play_img
                         play_button = play_img
                         pygame.mixer.music.pause()
                         pygame.mixer.music.pause()
-
+                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(path +"\\"+music_list[num])
     if pygame.mixer.music.get_busy() == False:
     if pygame.mixer.music.get_busy() == False:
         pygame.mixer.music.play()
         pygame.mixer.music.play()