RicB, At 09:24 3/29/2005, you wrote: >I wonder if anyone has ever tried to actually isolate any of the factors >mentioned and get to the bottom of the question, or if there is simply a >tendency to replace one set of assumptions with another ? > >One could actually contrive a tuning pin in a block fastened to a ><<plate>> that is strong enough not to give and take the entire >soundboard/bridge assembly out of the question. If one had access to an old WurliTzer grand with the split/wedged pins in a metal block, I'm sure you could set the pins so tight that they are the same as welded. Of course, then there might be other tuning stability factors involved. ;-} One I've serviced since 1984: 4'9" 1931 vintage 10/02 - 441Hz - 60% 2/03 - 438.1 - 32% 8/03 - 439.7 - 75% 2/04 - 439.3 - 34% 6/04 - 439.7 - 58% 1/05 - 439.7 - 32% NOT a scientific study, only anecdotal. Conrad Hoffsommer Decorah, IA My mind not only wanders, sometimes it leaves completely. It's gone right now and didn't leave a forwarding address.
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