At 01:56 PM 3/23/99 -0500, you wrote: >(Down weight minus up weight) divided by two gives you the friction >for that key. It should be in the 12 range in the bass to about 7 in >the treble. Higher numbers indicate too much friction or a major >action geometry problem which should be addressed before changing the >key weight. For most pianos that is a little low on friction. Something which is tolerable is 15 or 16 bass and 10 or 11 treble. S&S specs for concert grands is 50/20 bass to46 treble. With 50/20 the BW is 35 and friction is 15. Maintaining the 35 BW in the treble the friction works out to 11. Regards, Jon Page Harwich Port, Cape Cod, Mass. (jpage@capecod.net) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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