Best for SonyTabletP!
It's a widget which can change music to the following music by shaking a device.
I checked this widget there.
>google default music player
>Sony Tablet default music player
NOTICE:this widget only works when music player's widget is set on your Home Screen.
Sensitivity change of a shake and the appearance change of a widget(add 3 extra skins) should use the Pro version.
see also => NextSong!ShakeWidget PRO