save project

my_music.py

@@ -70,7 +70,14 @@ while True:
                     pygame.mixer.music.play()
                     click=0
                     play_button=stop_img
-
+                if x>400 and x<520 and y>350 and y<400:
+                    num-=1
+                    if num<0:
+                        num=len(music_list)-1
+                    pygame.mixer.music.load(path+"\\"+music_list[num])    
+                    pygame.mixer.music.play()
+                    click=0
+                    play_button=stop_img
 
 
     if pygame.mixer.music.get_busy() == False: