title: SoundCloud API getting comments
body: <p>I am using sound cloud api (specifically js player) and want to get all comments of the specific track. Their api says this:</p>
  
  <pre><code>/tracks/_{id}_/comments:
  </code></pre>
  
  <p>which I dont get, what's ID and how to query it in general. Can you give me a simple example how to get all comments for the track?</p>