Hi all, Just another observation about pitch correction. I came across a Yamaha m1a today where A0 was 18.75 cents but where the rest of the piano was quite flat. I decided to measure the pitch drop on A0 for each octave that I tuned. A0 was measured at E3 in each case using Reyburn Cyber Tuner. Pitch correction at A4 was a total of 44 cents and worst note flat was 150 cents. A0 = 18.75 no notes tuned A0 = 13.35 all notes pitch corrected to A1 A0 = 8.35 all notes pitch corrected to A2 A0 = 7.35 all notes pitch corrected to D3 (last note on bass bridge) A0 = 7.36 all notes pitch corrected to A3 A0 = 7.75 all notes pitch corrected to A4 A0 = 6.81 all notes pitch corrected to A5 A0 = 6.52 all notes pitch corrected to A6 A0 = 5.90 all notes pitch corrected to A7 A0 = 6.78 all notes except A0 pitch corrected. It would appear that the bass bridge is *mostly* independant of the treble from the above, but that *something* happens to the bass area in around the treble break (E5/F5) at least on this particular instrument. Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Saskatchewan Centre of the Arts drose@dlcwest.com http://donrose.htmlplanet.com/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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