Update:
The slab piano is fixed. Viola C was stuck on LOUD, with no touch control.
The nature videos were in progress, but the latest Mothersoft update deprecated the video editor, not to mention forcing another web browser on us. I had enough. So, I wiped my windows and did a full Debian installation/migration. Not completed yet, but all the major software is there–it comes with the OS, whooda thunkit?
Strange Days have found us, we have a plague of scorpions, and they just keep getting bigger.