Dear List Members: A customer of mine has Yamaha GH1, vintage 1991, that I will be servicing next week. The action on the piano is getting noisy, and I am wondering if there are methods that you all have found that are relatively quick fixes for eliminating the causes. I am assuming I will find hardened knuckles and compacted jack felts and wippen cushions. Thanks again, Patrick Poulson, RPT
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