auto save

p.py

+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])
+    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_list) - 1:
+        num = 0
+    pygame.mixer.music.load(path+"\\"+music_list[num])
+    pygame.mixer.music.play()
+    click = 0
+    play_button = stop_img
+