multiprocess in python for two different function

i've trying to make this work, but i just can't lol. Please, help me if you can:

I'm trying to do a simple music player, cause it's my first contact with the python (or any other programming langue), and at this part i want make some questions for the user while he is listening the music that we are taking about.

In next lines, if the user don't wanna listen again the music, i will add a list of music and make him choose, and, in the future, i want put some commands for skip to the next music and something about that

 



`   P1 = str(input('wanna again? (Y/N)'))
    def DEF1():
        if P1 == ('Y'):
            P2 = str(input('do you know what is it? (Y/N)'))
            if P2 == ('Y'):
                P3 = str(input('what is it?'))
                print(P3)
            if P2 == ('N'):
                print('this is a game sound!')
        if P1 == ('N'):
            print('that is it')

    def DEF2():
        while:
            playsound.playsound('', True) #a music link

    if __name__ == '__main_':
        Process(target=DEF1).start()
        Process(target=DEF2).start()`