This is a multipart message in MIME format ---------------------- multipart/alternative attachment Does the buzzing stop if you lift the string behind the agraffe? = I saw a piano once where the under string felt that was supposed= to go between the tuning pins and the agraffe had been left out,= so there was no upward bearing on the agraffe. If the string= has no pressure on the agraffe it will certainly buzz. dave __________________________________________ David M. Porritt, RPT Meadows School of the Arts Southern Methodist University Dallas, TX 75275 dporritt@mail.smu.edu ----- Original message ----------------------------------------> From: Robert Callaghan <robert.callaghan@harmonicity.com> To: <caut@ptg.org> Received: Mon, 13 Sep 2004 12:25:35 -0400 Subject: [CAUT] Agraffe noise Dear List, I just started at the local college. There is one grand piano= there where many plain wire strings and a few bass have a very= loud hiss or sizzle. If is was a bass string you'd think the= copper wrap was loose, but twisting the string didn't help. It= is the worst case of this I've ever seen. The piano has signs of being worked on. Beside pieces of felt= stuck here and there trying to get rid of the zinging, there= are Pin-Tite stains on the plate and rock hard, overly lacquered= hammers. On other pianos I've had good luck tugging upwards on= the string, or cleaning out the hole in the agraffe. But that= hasn't helped in this case. If I push down firmly on the string= on the tuning pin side of the agraffe it stops. There is felt= there so it isn't a vibrating string. In my research I found a= Journal article that mentions that maybe the agraffe itself is= loose. I wanted to run this by you all before I began testing this= theory, or perhaps someone knows exactly what the problem= actually is. (And because I have the piano faculty looking over= my shoulder I want to be right the first time!) Thanks for any insights. Bob Callaghan ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/3a/ab/17/b9/attachment.htm ---------------------- multipart/alternative attachment--
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