save project

my_music.py

@@ -65,6 +65,14 @@ while True:
                 pygame.mixer.music.play()
                 chlick = 0
                 play_button = stop_img
+            if x>420 and x<520 and y>350 and y<400:
+                num+=1
+                if num>3:
+                    num=len(music_list)-1
+                pygame.mixer.music.load(path+'\\'+music_list[num])  
+                pygame.mixer.music.play()
+                chlick = 0
+                play_button = stop_img
 
     if pygame.mixer.music.get_busy() == False:
         num+=1