title: Grabbing song info from MPMediaItemPicker
body: <p>I am attempting to assign the song title, author, and seconds played of a song to a set of variables.  However I am unable to pull any information from the song, what would be the best way to do this as currently my way crashes. </p>
  
  <pre><code>func presentPicker (sender:AnyObject) {
  //I have all of this within an IBAction if that matters, I am new to programming in general so sorry if theres any stupid mistakes
      let mediaPicker = MPMediaPickerController(mediaTypes: .Music)
      mediaPicker.delegate = self
      mediaPicker.allowsPickingMultipleItems = false
      presentViewController(mediaPicker, animated: true, completion: {println(MPMediaItemCollection())})
  
  }
  </code></pre>