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.
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