title: iOS + Swift, How to access all music files
body: <p>I'm making an app in iOS using swift. What I want to do is get all music file on the iPhone storage, just like iTunes does: I want to display titles, albums, as well as play tracks.</p>
  
  <p>I'm new with iOS programming: what iOS framework should I learn and use in order to achieve my goal?</p>
  
  <p>Thanks in advance.</p>