<< The squeek was pitched at C5, occured on the depression of the sustaining pedal, was not in the pedals or lyre mechanism, could be reproduced by pushing up on the damper tray. >> Hmm, how about a damper corroded wire, making noise as it went through the bushing? Maybe a wire hitting a string, or a damper head or wire hitting the plate? Maybe an underlever spring vibrating, or even the spring to the tray emitting a squeak. if not those, give a few more clues. Regards,. Ed
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