@Bernard said in Had a screw loose…. (A piano thread…):
Wow! I'm glad for you that the problem was pinpointed so quickly.
He diagnosed it at the last tuning (summer IIRC) and of course now that he’s fixed it, it’s dealt that he was right.
I don't recall seeing (or paying attention to) the back action.
Same. I don’t think I even knew it was back there, and when people talk about “the action” on a grand piano, they’re generally only focused on the part that connects the keys to the hammers. But of course, that doesn’t control the dampers.