You can test this by putting a shim of some sort over the aliquot. Also try plucking the string with a strong vertical pull and see if that exaggerates the sound. Don't overlook the possibility of a slipping copper winding. Ed S. ----- Original Message ----- From: "Robert Callaghan" <robert.callaghan at harmonicity.com> To: <caut at ptg.org> Sent: Saturday, October 09, 2010 4:08 PM Subject: [CAUT] Bass string & Aliquot bar contact noise > I'm looking at a grand piano where an upper bass string has a very > pronounced "zing" on a hard blow. It sounds just like when a damper wire > touches the string. But even with the damper removed I hear it. I suspect > it is the bass string touching the treble aliquot bar below it, meaning > perhaps the aliquot bar is in the wrong spot, too far up the slope of the > plate. Before I do anything like move the aliquot bar, I want to run this > by everyone. Do you agree this could be it? > > Thanks. > Robert > > > > > ======= > Email scanned by PC Tools - No viruses or spyware found. > (Email Guard: 7.0.0.18, Virus/Spyware Database: 6.16040) > http://www.pctools.com/ > ======= >
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