This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment An institution (University) I service bought a 1921 Steinway B for their = recording studio and had a colleague rebuild the instrument about 6 = months ago, a truly beautiful job. It has in the meantime developed a = buzz (very slight but annoying) very similar to the sound of a small = screw lying on the sound board. The buzz shows up around B5-C6. = Nothing is on the sound board. Nothing shows up feeling around under = the plate. Pressing on the bridge/board in that area makes no change. However, pressure on the board toward the bass about a foot in from the = belly rail quiets it, as does pressing up from beneath at the same = point. The board was not replaced but was shimmed using a router from Spurlock. = There are no loose ribs, no run-out glue at the rim, no sign of any = separation in the shims or otherwise that I can see.. Both the = rebuilder and I are located about 100 miles from the university. Since = I am there regularly it falls to me to handle the situation until he can = get there. In desperation, I fell back on the frowned-on practice of wedging = something between the board and a beam. I wedged a rubber mute + wooden = wedge up under the lath (what is its correct name?) that connects 3 ribs = in that area. It stops the buzz for now. Reflecting on the situation, I wonder if the piano needs a cut-off bar = in that area to isolate that portion of the board; and I have in effect = provided one. I would appreciate comments and suggestions on where to look for the = real cause of the buzz, how to correct it, etc. I have the fortunate situation that the faculty member who oversees my = work is a member of the Guild and enrolled in the Randy Potter course. = In fact, he got to Nashville last week and I didn't! It is a pleasure = to work under someone who has the interest if not the experience. Bill Maxim wmaxim@sc.rr.com ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/d8/05/6a/f8/attachment.htm ---------------------- multipart/alternative attachment--
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