[CAUT] sympathetic vibration in non damper section

[PNOTNR@aol.com]

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In a message dated 4/30/2005 10:12:08 P.M. Eastern Daylight Time,  
skline@peak.org writes:

Have you  investigated the long waste lengths on the bridge end of the tenor 
section?  I've had a few pianos where one (or another) note around the sixth 
octave  would ring on too long and too loud. I tried plucking all the different 
waste  lengths (especially the ones behind the bridges) that I could. 
Sometimes it  seems like a bunch of them are reinforcing (mainly) just one note. 
I thought it might be a bunch of sources, and I used 3/4" stringing braid  to 
mute any non speaking string lengths.  I didn't notice an improvement  after 
doing that.  I found that if I played a loud C major block chord, the  E6 
would ring, and if I touched the speaking length of that note, it stopped  
immediately.  And if I muted E6, I didn't get the after ring.  So I am  pretty sure 
the culprit is E6.  
 
I did find that many of the waste ends rang at that same pitch, so I  thought 
I'd be cutting the volume of the after ring by muting everything.   But the 
main piano teacher called me later, saying she hadn't noticed any  change.  (I 
was surprised that she didn't notice a change in tone of the  piano since I 
muted any non speaking sections.)
 
Thanks,
 
Gordon Large





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