CC Tweaked Wireless Speaker Program

local speaker = peripheral.find("speaker")
local MID = 1

function SongPlayer(input)
while not speaker.playAudio(input) do
  os.pullEvent("speaker_audio_empty")
end
end

rednet.open("top")
while true do
  local id, message = rednet.receive(Protocol)
  if id == MID then
      SongPlayer(textutils.unserialize(message))
      os.pullEvent("speaker_audio_empty")
  end
end