save project

my_music.py

@@ -57,6 +57,14 @@ while True:
                     pygame.mixer.music.play()
                     click=0
                     play_button=stop_img
+                if x>420 and x<520 and y>350 and y<400:
+                    num += 1                    
+                    if num > len(music) - 1:
+                        num=0
+                    pygame.mixer.music.load(music[num])
+                    pygame.mixer.music.play()
+                    click=0
+                    play_button=stop_img 
 
     if pygame.mixer.music.get_busy() == False:
         num+=1