title: How perform streaming of .m4a song file with AVAudioPlayer?
body: <p>I'm trying to play this song from itunes store while I'm downloading it </p>
  
  <p>Why the code below doesn't play?</p>
  
  <pre><code>NSLog(@"start");
  
  NSURL *songUrl = [NSURL URLWithString:@"http://a1804.phobos.apple.com/us/r1000/064/Music/v4/9b/b3/c7/9bb3c7dc-a06f-f18c-3e41-2ce1e36f73b4/mzaf_7432104896053262141.aac.m4a"];
  
  
  NSError* errorVar = nil;
  AVAudioPlayer* song = [[AVAudioPlayer alloc] initWithContentsOfURL:songUrl error:&amp;errorVar];
  [song prepareToPlay];
  [song play];
  </code></pre>