Music Everywhere Lite

Music Everywhere Lite offers you fast and easy interaction with your music player.. plus a nice user interface. It lets you configure the design and the user manual interaction. (not all features are available in the Lite version, the pro version is linked below)

Two options to call the floating widget:

1) via floating bubble

2) via activation area (swipe on it)

PRO Version: https://play.google.com/store/apps/details?id=com.flextrick.musiceverywhere