Phil, as I understand your posting, you perfectly describe the need for overpull in pitch raises. Phil Bondi wrote: > Using this procedure, can someone tell me why, when I am all done and ready > to pack up, when I go to see where A4 is at, it is normally -1.5 to -2 cents > from A4? > > my next piano was a newer Wurlitzer Grand..this was its second tuning..A4 > measured -4.8 when I started..so instead of off-setting from -4.8, I decided > to add 2.6 cents to the A4 number, bringing it to -7.4..THEN I off-sett and > set A4 and tuned as I usually do. > > When I was done, A4 was dead-on the money. > > My addition of 2.6 cents was pure luck..there was no calculating on my > part..i just knew that I had to start with a lower number to get it to > finish at A=440. > > When I use the SAT to tune a piano(pitch-raises), my tuning procedure is > quite different. I do not use any temperment strips..rather, I use 2 rubber > mutes and tune unisons as I go..and every time I get done, no matter how > flat that piano was, it always ends up at A=440. How are you useing the SAT.. Are you setting it to do a pitch raise ?? It has a built in overpull mechanism I believe..? > > Am I doing something wrong with my aural procedure? Not hundred percent sure I read your posting correctly, but if you are not over pulling a bit on your aural tunings for pitch raises you will be flat when you are done. Exactly how much overpull is needed is fairly predictable, and the ETD's do a great job of calculating this for you. > > > Not too old to learn, > > StillaRook -- Richard Brekne RPT, N.P.T.F. Bergen, Norway
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