Hi @jasebob, @mathea, @vandura231, @Hielke_Haan, @Reedstrr, @ranunculales, @juan11perez - in case you are still using SoundTouch with Home Assistant …
I have developed a new SoundTouchPlus integration to control my SoundTouch devices. It can also be easily installed via HACS. More info can be found on my GitHub Project page.
I also wrote the underlying bosesoundtouchapi python 3 library as well, which is packed with features. I basically got tired of libsoundtouch not being supported, so I wrote my own. More info on the API can be found on the Pypi.org page or the ReadTheDocs.io pages.
I have also started a SoundTouch WebServices API notes page that contains detailed information on some of the supported SoundTouch WebService API services. It’s been an uphill battle with the WebServices API, as Bose no longer publishes documentation. I have been able to figure out quite a few things: Pandora music service support, playing of https content items, tone controls (bass and treble), etc, besides the standard volume controls, preset switching, etc.
Hope it helps.