React on door ring button press by taking a photo, sending UDP broadcast and playing jingle bells

door.py

#!/usr/bin/python3

from gpiozero import Button, TonalBuzzer
from gpiozero.tones import Tone
from picamera import PiCamera
from time import sleep
import socket
import threading

buzzer = TonalBuzzer(27, octaves=1, mid_tone="A4")
button = Button(4)
camera = PiCamera()
camera.rotation = 180
msg = bytes("door ring\n", "utf-8")

notes = "EEE EEE EGCDE FFF FFEE EEGGFDC"
beats = [2,2,3,1, 2,2,3,1, 2,2,3,1,4,4, 2,2,3,0, 1,2,2,2,0, 1,1,2,2,2,2,4,4]
delay = 0.07

#print(buzzer.min_tone)
#print(buzzer.max_tone)

def playSong():
    for n, b in zip(notes, beats):
        duration = b * delay
        if n != ' ':
            buzzer.play(Tone(n + "4"))
            sleep(duration)
        buzzer.stop()
        sleep(duration)

while True:
    button.wait_for_press()
    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP) as sock:
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        sock.sendto(msg, ("255.255.255.255", 5005))

    beep_thread = threading.Thread(target=playSong, name="Beep")
    beep_thread.start()

    camera.start_preview()
    sleep(2)
    camera.capture('/home/pi/cam.jpg')
    camera.stop_preview()
    #print("photo taken")