Ron said: "Hmmm... On second thought this could also be interesting to see how the individual note numbers of even one piano differed from one ETD tuning to the next at a 30% or more RH% difference. Any chance?" Ron, I have a sneaking hunch what you are alluding to.<G> I have observed, on some of my 3-4 times a year, pickyuny clients, good pianos, a strange thang. Since I passed my RPT, aurally and now use a SATII, this phenomonon has cropped up many times. Although, I do not use recorded tunings w/the SAT, I do pay attention to the "stretch factor" on each tuning. On the same piano, but different times of the year, w/different humidities, I've noticed that the "Stretch Factor" numbers are different. Example: On one tuning the SF will be 1.2cents on A4, with the machine set at A5. The next time, the darned thing will yield a SF of 2.4 cents. Same piano, just different humidity. I keep record of the temperature/humidity every time I tune, so I have references to check. It is my thought/guess/idea/whatever, that the moisture content in the sounding body will create different inharmonicities in relation to the moisture content of the wood, (in relation to the given differences in humidity.) I have no way to verify this, but it's been the reason that caused me to question the validity of "stored tunings" and to come up with a method that works for me, tuning-wise. (refer to my PTJ article, January 2000. (I'm constantly upgrading and refining that method, but, it works for me...most of the time.<G>) Regards, Joe Joe Garrett, R.P.T. Captain of the Tool Police Squares R I
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