And herein lies the interesting crux of my whole question from the beginning: We have guesses, suppositions, and opinions but, apparently, really don't know why pianos get flatter and flatter and flatter over time. Seems like this question is so basic that experiments would have been done long ago and we'd have a definitive answer. And maybe, who knows, some ideas for building more stable pianos. I still go with turning pins, though. There is a natural, sustained tension on the pin from the string that would love to turn the thing counter-clockwise. Earth tremors, children thudding across the floor, sonic booms, moving the piano, and hovering ufo's would all put vibration into the system, however briefly, and the pin could jiggle just a a third of a skinny hair each time. But over the years ... Alan R. Barnard Salem, MO -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Ron Nossaman Sent: Sunday, March 27, 2005 11:38 AM To: Pianotech Subject: Re: was flat facts > I don't really buy into the "tuning pin turns" theory. Me either, nor the wire stretching. Music wire doesn't continue to stretch over time unless it's tensioned at it's yield point - then it stretches, necks down, and breaks. Ron N _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.3 - Release Date: 03/25/2005 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.3 - Release Date: 03/25/2005
This PTG archive page provided courtesy of Moy Piano Service, LLC