How do you harden the capo bar in a grand piano. Have a Yamaha CF that is buzzing wildly in the upper treble. I am going to release the tension on the strings in the upper section then seesaw some emery paper over the grooves to get the bar smooth but this bar is IMO to soft. Can this be chemically treated to harden it or how should it be done. Tony Tony Caught acaught at internode.on.net 0427 850 737 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110629/cbba3ec2/attachment.htm>
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