Damon Atchison asked why "every player piano has a switch under the
keybed to lock the keys."

I'd imagine that by decoupling the keyboard you remove mass that the
striking pneumatic has to accelerate when it plays, giving you a
faster, crisper responding note. A great "feature" for unrestored
instruments ;)

Also on reproducers, I can imagine some quiet passages may not play
some notes if the player is not adjusted quite right.

Karl Ellison - Ashland, Massachusetts U.S.A.¶
KBEllison@aol.com   http://members.aol.com/kbellison/kbe.html