Hi Doug, Pitch correction with a concert level tuning is not really very possible. Here is some data that may be of interest. All tunings were done to the same instrument. Tuesday pitch correction at A4 7 cents worst note 48 cents humidity 16% Immediately followed by my best attempt at concert tuning. A4 = 440 Thursday 8:00 a.m. the instrument had drifted one cent sharp at A4. I chose to leave it at that pitch, and offset Reyburn Cyber Tuner to +1 cent. Humidity 17% Pitch correction at A4 0 cents worst note 9 cents Immediately followed by my best attempt at concert tuning. A4 = +0.6 cents Thursday at 6:00 p.m. A4 had drifted two cents sharp I chose to leave it at that pitch, zero offset on Reyburn Cyber Tuner Humidity 18% Pitch correction at A4 0 cents worst note 3.9 cents, temperament octave was flat by between 2 and 3 cents Immediately followed by my best attempt at concert tuning. A4= 440 So with four tunings in one day-and six within 48 hours I barely got to what I consider domestic tuning on an original pitch correction of between 7 and 48 cents. Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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