Unpleasant overtone in plain wire

David Andersen david@davidandersenpianos.com
Mon, 07 Nov 2005 12:46:18 -0800


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>> Original message
>> From: "John Alsina"
>> To: pianotech@ptg.org
>> Received: 11/7/2005 11:08:00 AM
>> Subject: Unpleasant overtone in plain wire
>>=20
>> I am working on a 1928 Steinway M that has loud unpleasant overtones in =
notes
>> E3 to B3. The overtone sounds like an out of tune cymbal or bell about a
>> seventh above the fundamental.  It can first be heard immediately after
>> initial impact, and has a long decay.  It is not a sympathetic vibration=
 from
>> elsewhere in the piano.  It occurs whether the string is struck with the
>> hammer or plucked.  The strings have been replaced, leveled, and termina=
tions
>> checked.  Nose bolts are tight. Hammers are new Steinways.  Hammer voici=
ng
>> reduced the overtone on some notes, but not on others.  The piano has ve=
ry
>> little downbearing in the tenor, but pressing upward under the bridge in=
 this
>> area does not affect the problem.  Help!



Try looking around REAL carefully under the plate; sounds like something=B9s
laying on or touching the soundboard in some way.....

David=20
Andersen

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