This app is made to be very simple, and uses (or abuses if you like) the built in launcher code for “listening” for music on the phone. It appears to support any app with a notification whilst playing music, but I’ve tested it with Spotify and Play Music and it works fine. To access volume controls, long press on the pause/play button. It will revert to normal controls after 5 seconds, or if you long press play/pause again
Source: [APP] Springboard Music – Better remote music controls for the Pace’s homescreen
