Mark, I just noticed your hijack patch to correct some button codes in the old app and will be fixing that in the new one.
Looks like I will update the following:
Next > NextTrack
Prev > PrevTrack
KnobRight > VolUp
KnobLeft > VolDown

There are some features in the old app that I'm not sure anyone ever used (gestures, for one). I never really wrote any documentation to describe how it worked...so I am thinking of leaving that out of the new version, depending on how Compose deals with gestures today.

I will also try to utilize the native keyboard for search instead of the customized garbage'y one I used previously. Though it is likely going to be janky/broken if using swipe to type.