The actual removal of the tapestry from the loom and the finishing work is a session unto itself, and might be a nice one to do as a demo a bit later on.
Extra added attraction: artist friend I haven't seen for ages made spontaneous arrangements to drop in, and she and her daughter got a free concert and performance as we set up for Sunday!
Pictures are of her with daughter examining the tapestry, and of Bill at the piano deciding on his musical approach. Since he and I are both very intuitive artists, this was a mystery, how it would work. But I think it will work just fine, judging by our rapport this afternoon.