Music Everywhere (PRO) for Android
Gives you a bubble and options to open up your choice of music players.
It's a brilliant idea that doesn't quite do it for me in the execution. It would be perfect if you could specify which contexts you want it on for and which you want it to go away, e.g., in certain apps, or when an app goes full screen, but otherwise I found it more annoying than useful. I don't begrudge the dollar-and-change I spent on it and I'd try it again if things changed, but for now, it's getting uninstalled.
I do a lot of driving. My phone is in a dash mount. I always use one of 4 GPS apps and usually listen to music via Poweramp. Sometimes I wish to skip tracks. Music Everywhere offers both a customizable activation area & a bubble or icon which allows control of the music app without the need to interrupt the GPS app in any way! It's the ultimate in safe, simple interaction. The developer has thought of far more options & customizations than I could conceive. He also responds to questions promptly!
by Q####:
There is no POWER AMP option in default music player options