--Re: Unstable Yamaha... > It was flat in the treble, and uinsons out up and down the keyboard. Two > days after the last tech tuned it, I played chromatically and the vast > majority of bi, tri unisons were very "wavy". > > Terry. > Terry Did you find this instrument a tough one to set clean unisons on? Even experienced technicians have trouble with unison stability on some pianos... How about snugging the pinblock and plate screws before the next tuning... Time (and a few more tunings on that instrument) will tell
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