The background music keep restarting. How to stop it. : <p>I create a sharedInstance of a background music and initialize it in the viewDidLoad of the first view controller. But when i change the screen (via segue) and come back to the first screen, the music restart. I believe that's happen because the viewDidLoad it's called again, but i don't want the music to keep restarting every time i comeback to this screen. </p>

<p>How can i manage to the music keep playing without interfering? </p>
