Very interesting. I guess this says that the Steinway folks are finding that synchronicity is of paramount importance in satisfying the top artists. I would take it that the action is already within very tight tolerances when this procedure is done, so the variance in jack/knuckle friction and period of time of jack/knuckle contact is fairly minimal. I'm sure this aspect has occurred to the Steinway guys - they are a particularly sharp team. >> Yes, yes, (this adjustment, or should I say "refinement" is the "last" one in their order of regulation), and yes. This is in keeping with what we seem to be hearing from all sides - top independent techs as well as the official line from the Yamaha and Kawai teams, and from Bechstein and Seiler as well. I concur that this "positive bump" is a good thing, providing the pianist with a very positive feel for maximum control. I noted in an earlier post the notion of microadjustment of acceleration/velocity during the keystroke. Much of that adjustment occurs, I think, after the bump is felt. I'm writing from experience as a performer, as well as theoretically. There is a sense that one has much more control over tone quality and volume with synchronicity. I look at it like a baseball pitcher's technique. The whole body movement is very important, but so much of the real finesse is in that final release/flip of the wrist. The responses you got from Dave Porritt and Mike Jorgenson are quite interesting. I can see where individual preference might dictate varying from simultaneous in some circumstances. Regards, Fred Sturm University of New Mexico Regarding the "the bump," my preference is to have this sensation as "crisp" as possible, and as late as possible, IOW, the least functional key travel remaining after escapement, the better. Or to say the same thing differently; .045" A/T in an Steinway usually "seems" right, whereas anything more than .035" in a Yamaha (pardon my generalization), and the "bump" becomes objectionable. Syncronization and correct after-touch seem to go hand in hand. IMHO Mark Cramer, Brandon University _______________________________________________ caut list info: https://www.moypiano.com/resources/#archives
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