Terry: Sometimes the soundboard or a little piece of finish may slightly touch the nosebolt as it passes through the soundboard causing major buzzing problems. Also if the old piano has a piece of molding around the soundboard hiding the crack between the soundboard and rim, it might be loose causing the problem. I assume this is a wood to wood sound and not a metal to metal nor metal to wood sound. Also once again just today I located a buzz caused by the piano......the mirror on the wall behind the piano. I also assume you press up on the soundboard while attempting to insert a feeler gauge between all ribs and soundboard...checking for unglued ribs. On a few cases I have found the ribs unglued but the board not cracked. Oh...I'm glad it is you looking for this buzz and not me. Solving buzzing problems in most cases is most distressing. Tommy Black Decatur, Ala.
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