title: iOS 7: MPMusicPlayerController volume deprecated. How to change device volume now?
body: <p>MPMusicPlayerController setVolume is <a href="https://developer.apple.com/library/ios/documentation/MediaPlayer/Reference/MPMusicPlayerController_ClassReference/DeprecationAppendix/AppendixADeprecatedAPI.html#//apple_ref/occ/instp/MPMusicPlayerController/volume" rel="noreferrer">deprecated since iOS 7</a></p>
  
  <p>Is there any other way to change system music volume? Preferably without user interaction.
  Its important feature: to increase volume automatically for any alarm clock from AppStore.</p>