---------------------- multipart/alternative attachment At 08:47 AM 3/25/2002 -0800, you wrote: >I just got a call from a client who said it sounded like there was >cellophane in her piano when she played. It made her jump up and look to >see what was "in there". She played a few bass notes over the phone and >you could hear a definite action clatter. Then she noticed it was >occurring when she released the key. I guess I'm revealing my age when I >say I know the "sound of cellophane". I think the thing noticed most about >cellophane was the rustling noise that had an unusual crackling/pop noise >with it. Nothing quite like it. If you guys don't nail this one, I'll be >surprised. This is probably going to take me into my next field of study. >I have a good understanding of key dip/hammer blow distance/let off though >I've heard talk of a safety factor/relationship that I would like to know >more about. I've taken Nick Gravanite? Action geometry and Wally Brooks, >effective weight control and couple of grand regulation classes. Now to >the repetition lever. My guess, and it's purely a guess, the noise is the >rep lever going through it's cycle. Guy Nichols class, Extreme measures, >he said "pop and buff" the rep springs. What's the best way to do that and >is that anywhere close to my problem noise? >By the way, Guy's class is a good one to take after lunch. you won't fall >asleep. >Keith R > >occurring when she released the key. My first inclination is towards damper noise. Harder felt will buzz on the vibrating string, even more so if there is a slight amount of rust deposits on the felt from the string. Regards, Jon Page, piano technician Harwich Port, Cape Cod, Mass. mailto:jonpage@attbi.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/82/b9/2e/66/attachment.htm ---------------------- multipart/alternative attachment--
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