steps:- 1)we should main_folder in same folder of main.py 2)in main folder create new folder name as 1 (class name for the mean time remain as '1' only , for changing the class name change name in python code variable name as class ) 3)in the 1 folder create folder name as day (eg:- Monday,Tuesday...e.t.c,(make sure that first letter is capital)) 4)in the day folder create the folder name as(1 to number periodss you have ) 5)after creating the folders in that folder keep the .mp3 (named as 1.mp3,2.mp3....)(the less number it will the first it will be played)