old_contents: from gpiozero import Button
  import pygame.mixer
  from pygame.mixer import Sound
  from signal import pause
  
  pygame.mixer.init()
  
  sound_pins = {
      2: Sound("samples/drum_tom_mid_hard.wav"),
      3: Sound("samples/drum_cymbal_open.wav"),
  }
  
  buttons = [Button(pin) for pin in sound_pins]
  for button in buttons:
      sound = sound_pins[button.pin.number]
      button.when_pressed = sound.play
  
  pause()
  
new_contents: from gpiozero import Button
  import pygame.mixer
  from pygame.mixer import Sound
  from signal import pause
  
  pygame.mixer.init()
  
  button_sounds = {
      Button(2): Sound("samples/drum_tom_mid_hard.wav"),
      Button(3): Sound("samples/drum_cymbal_open.wav"),
  }
  
  for button, sound in button_sounds.items():
      button.when_pressed = sound.play
  
  pause()
  
subject: Update music box recipe