I would add "bridge twisting" as on a pitch change the strings will not slip evening over the lower bridges and they will gradually return to their rest position over a few weeks time (without heavy playing over an eight hour period). Ken Gerler ----- Original Message ----- From: PAULREVENKOJONES at aol.com To: pianotech at ptg.org Sent: Friday, August 28, 2009 7:01 PM Subject: Re: [pianotech] PR follow up The most general phrases that seems appropriate to start the discussion would be soundboard (de- and re-)compression over both bridges, and the string segmentation tension differentials. Seems enough. :-) Cheers, P In a message dated 8/28/2009 6:36:33 P.M. Central Daylight Time, davidlovepianos at comcast.net writes: Please explain the physics as you know it that would account for this. ------------------------------------------------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090829/046e087b/attachment.htm>
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