title: Playing multiple sounds simultaneously with AVAudioPlayer
body: <p>Could someone help me with a function that fires multiple <code>AVAudioPlayer</code>s at the same time? Right now I am trying to get a total of twelve <code>AVAudioPlayer</code>s to fire at once if twelve buttons are activated, but there is a delay and it sounds like someone is running their finger down a piano instead of hitting all the keys at once. </p>
  
  <p>I've looked at Audio Queue Services and can't understand how to actually implement that into code, but it says it can play synchronized sounds. I'm not sure sure how to set all of it up. I'm trying to remake a Tone Grid app.</p>