That's what Newton Hunt wrote in 1998 on this: https://www.moypiano.com/ptg/caut.php/1998-September/000822.html Here's another aspect of this fascinating dynamics discussion: the effect of the shape of the fulcrum under the key. Dr. Chuang says that the rounded support under the key bushing (in S&S) moves the fulcrum towards the pianist's finger as the key moves downward, lengthening the back of the lever. Is this effect significant? http://members.aol.com/Mccc8888/chapter1.htm --Cy Shuster-- Rochester, MN ----- Original Message ----- From: "Classic Touch Ent" <classictouchent@comcast.net> To: "Pianotech" <pianotech@ptg.org> Sent: Thursday, May 01, 2003 12:40 PM Subject: Re: Key Leads and Inertia > Hello again, > > I'm wondering if the concept of accelerated action has less to do with > the downstroke (less inertia to overcome on a high velocity strike) > than with the return (with the weight(s) closer to the balance pin they > are less effective counterbalancing the stack mass- potentially a > quicker return). I guess it has a perceived overall benefit on both > sides of the keystroke? > > Rich
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