This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Mark & all, My apologies to Ron Berry if I get this wrong: I measure FAC stretch numbers as usual and create the tuning in a memory = slot. I tune A4 then move the SAT to A6 and play A4. At A6 the SAT is = listening to the fundamental of A6 as determined by the calculated = tuning. If playing A4 stops the lights at A6 my stretch for that string = is correct. But, the octave temperament octave stretch may not be. Then I tune B4 and C5 per the calculated tuning. The FAC tuning changes = partials at C5. To be sure the octave stretch is good for this piano I = play B4 with the SAT set on F#4 and observe how fast the lights rotate = sharp. Then play C5 with the SAT set on G4 and observe the lights = again. The speed for both notes should be about equal for a smooth = transition across the breaks. If B4 is faster then lower your A4 number = and recalculate. And the opposite if it is faster. As usual, the good, well scaled pianos don't need this extra step very = often. It's the others that require this extra step. I hope this helps. Del Gittinger, RPT Del's Music Studio, Marion, OH Piano Tuning & Service Electronic Instrument repairs including organs delgit@acc-net.com Hi Del - Is there a concise way to discuss those "various ways" on the list for those unaware of Ron Berry's approach? Would love to hear it... Mark Potter bases-loaded@juno.com ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/e8/cd/bc/3a/attachment.htm ---------------------- multipart/alternative attachment--
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