MusicGestures is a jailbreak tweak that lends the ability to control the stock Music app with gestures instead of button presses. There are a total of 6 actions (7 if you count disabled as an action) that you can assign to any number of gestures.
The gestures can be used to skip, play, pause, and gather info on both the album cover view, and the individual track view.
It's not the deepest tweak in the shed, but the simplicity of MusicGestures makes it worth a look...