Please start the Pandora/Spotify app first, and have it run in the background. Then start our app, and the music should still run in the background. FYI our app cannot control music functions for Pandora/Spotify.
Another thing to keep in mind with the new iOS is that you have to turn on Notifications inside your iOS settings for the app to be able to send you voice cues when your device is locked. Without this turned on, no voice cue will be played.