Musickey v1.1 by Alexander Folkin, Symbian OS 9.x

Brilliant app. When your phone screen is locked. Change your camera key, hold button and red key into play, prev and next key respectively. I use power key as a play pause key. Like when you're driving, and you have to pause the track or play next. Just press power button or red button, without unlocking the screen. Isn't that great? Try this,