> Somewhere my wife and I have heard about or read about a player harp.

I seem to recall a picture of one in Bower's Encyclopedia of Mechanical
Music.  In fact, based on this book, there probably _isn't_ an
instrument that hasn't been mechanized at some point.  Maybe Highland
bagpipes, but then, it wouldn't surprise me if Bowers didn't have a set
of those taking a "G" roll, either...  =)

regards,
Larry Smith