At 09:59 AM 8/23/2003 -0400, you wrote: >If the driven portion is lighter than the driver, there is the good chance >in some circumstances that he top action will "fly away" from the key. >(Have you ever had a pianist talk about "fly-away" hammers?) Yes, I have heard pianists talk about that, and I think it is more common than we care to notice. We work so hard on minimizing touchweight that the hammer centers often have so little friction that they are barely controllable even when they are first put on. Then the piano sees heavy use for a few years ... and the springs are still as firm as they started ... the hammers swing 14 times when you take them off the rail ... There are fly-away dampers, as well. Anyone heard pianists complain about "dancing dampers"? If the damper upstop rail gets driven upward because the right pedal doesn't have any kind of stop block, dampers can jump all over the place, and their arrival back on the key ends can be felt and is quite annoying. Susan
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