First of all thx to @tailor.
This is my first widget based on the template of him. The widget showing cover, track, controls, favorites and is customizable.
I have expanded the widget with settings. For the preset logos you can copy the URL from openhab Admin.
I use the widget for my Bose Soundtouch speakers, maybe you can use the widget for other speakers e.g. Sonos, just let me know.