title: How do I achieve very accurate timing in Swift?
body: <p>I am working on a musical app with an arpeggio/sequencing feature that requires great timing accuracy.  Currently, using `Timer' I have achieved an accuracy with an average jitter of ~5ms, but a max jitter of ~11ms, which is unacceptable for fast arpeggios of 8th, 16th notes &amp; 32nd notes especially.  </p>
  
  <p>I've read the 'CADisplayLink' is more accurate than 'Timer', but since it is limited to 1/60th of a second for it's accuracy (~16-17ms), it seems like it would be a less accurate approach than what I've achieved with <code>Timer</code>.</p>
  
  <p>Would diving into CoreAudio be the only way to achieve what I want?  Is there some other way to achieve more accurate timing?</p>