Don't you think a dampchaser is in order? That's the first thing I'd do David Ilvedson, RPT Pacifica, California ----- Original message ---------------------------------------- From: "Thomas Cole" <tcole@cruzio.com> To: Pianotech <pianotech@ptg.org> Received: 1/2/2006 9:58:56 PM Subject: Knabe Tuning Mystery >The piano is an 1895 Knabe, art case upright in exceptional but original >condition. The problem is tuning instability. I tuned it one year ago >along with a Schimmel grand in the same room. The Schimmel sounded >beautiful today, so much so that I declined to tune it. But the Knabe >has become unplayable and out of tune in way I've never seen before. >Because of heavy rains, the humidity is higher than when I last tuned >the Knabe (72%). I noticed the tenor strings were a little sharp, >getting sharper at the tenor/treble break. Then the treble started out >+25 cents and the top few notes were at or near +50 cents. Bass was >slightly sharp. >The owner says that the Knabe tuning never lasts more than two or three >weeks. He plays it much more than the grand, so this is a factor, but he >is not a heavy player. The owner wants to restring, because strings are >starting to break, but not change the soundboard. The board, bridges and >pins look like new, but I was not able to check crown (owner afraid of >hardwood floor damage if I move it). >How can I find out what is causing this tuning instability? Why would >the tuning go so sharp in the treble, as opposed to the tenor where you >would expect? Can anything be done in the course of a restringing to >improve stability? >Tom Cole >on the Left Coast >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives
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