String termination question

Willem Blees wimblees at aol.com
Sun Jan 13 20:21:52 MST 2008


Geoff



As Annie indicated, the string needs to go over the bridge for the vibrations to transfer from the string to the soundboard. The string needs to be seated?at both?sides of the bridge, so that the vibration is transferred without interference. If?the string is not seated, then there will not be a solid transfer of the vibrating string.?

See what happens when you start thinking. 



Willem (Wim) Blees, RPT
Piano Tuner/Technician
Honolulu, HI
Author of 
The Business of Piano Tuning
available from Potter Press
www.pianotuning.com


-----Original Message-----
From: Geoff Sykes <thetuner at ivories52.com>
To: Pianotech at Ptg. Org <pianotech at ptg.org>
Sent: Sun, 13 Jan 2008 3:42 pm
Subject: String termination question



Greetings All --

?

I made the mistake of thinking the other day, and I started wondering why piano strings are terminated at the bridge on both the X and Y axis but at the capo bar, or agraffe,?on only the X, (or perhaps that's Y depending on how you are looking at it), axis. We go to lengths to make sure the strings are seated properly at the bridge so that there is a definite and precise termination in both planes at the bridge and bridge pin. Why then?is the lack of termination in both planes not a problem at the agraffe and capo bar end? 

?

-- Geoff Sykes, Los Angeles


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