Play music with a PIR motion detector and a Raspberry PI

motion_music.py

#!/usr/bin/env python

import RPi.GPIO as GPIO
import pygame
import time

GPIO.setmode(GPIO.BOARD)
GPIO.setup(11, GPIO.IN)

pygame.mixer.init()
pygame.mixer.music.load("halloween.wav")

while True:
	if GPIO.input(11):
		print('motion')
		pygame.mixer.music.get_busy() == True:
			continue
		time.sleep(5)
	time.sleep(0.1)