A440A@aol.com wrote: >What I wonder is why such a localized effect of losing a string? Cast iron >is pretty stiff, and if losing a string allows the plate to relax, wouldn't it >affect more than just the two notes on either side? I have measured >soundboard drop under tension, and it isn't uncommon to see them drop .050" when the >piano is chipped to pitch. Some more (such as the Chickerings with the inner >rim), some less (Steinways and Baldwins), but there is still a lot of movement >up and down. >Regards, > > > I'll agree that this is a confusing one.... and I dont really see that any of the explainations I've heard through the years are really satisfactory. But then it would help if I knew the physics of the different parts that may or may not be involved better then I do, I'll grant that. This said... I kind of tend to aggree that the 75 cent rise in C5 mentioned in the origional post of this thread probably has significantly to do with the plate. Most likely both the soundboard and plate are involved and perhaps some things we havent really thought about. Cheers RicB
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