Hi Gregor, This has a bit, for uprights. http://www.pianola.demon.co.uk/paction.htm and for others http://www.hnet.net/~pianotec/action.htm and for descriptions of how it all works with diagrams http://www.math.uwaterloo.ca/~my2iu/workshop/piano/piano.html Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Saskatchewan Centre of the Arts mailto:drose@dlcwest.com http://donrose.xoasis.com/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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