title: Are there any other iOS system sounds available other than 'tock'?
body: <p>I have implemented an alternative keyboard on my first iPhone app. I would like to play a sound when a button is pressed. The default click sound when the standard keyboard is pressed would be fine, but I don't know how to get that sound.  </p>
  
  <p>In this answer I found how to play a 'tock' sound:</p>
  
  <p><a href="https://stackoverflow.com/questions/7831671/playing-system-sound-without-importing-your-own">Playing system sound without importing your own</a></p>
  
  <p>I got this to work easily enough but it is a very loud sound. I've searched Stack Overflow and the Xcode help for available iOS system sounds other than 'tock' and I can't find them.</p>
  
  <p>Are there other built-in sounds, maybe even the default keyboard sound, that I can use?</p>