title: Play music in lock screen
body: <p>In alarm app I need to play music when received local notification or after specific period in lock screen.</p>
  
  <p>My solution: I set background mode as audio in plist and when received notification some code will execute which responsible to play music using MPMusicPlayerController.</p>
  
  <p>Apple reject this app because I used background mode .</p>
  
  <p>Who has another way to do this ?</p>