This is absolutely a case where ETDs shine. I tuned two D's and a C3 together for a concert. One D was new, out of C & A; the other was ten years out of a rebuild; and the C3 was used for daily teaching. Using TuneLab, I measured iH on all three pianos, and then went home, sat back with my iPaq and tried various octave styles. On the first pass, I just wanted to get the overall stretch about the same, so I just looked at the offsets for A0 and C8. After I got those close (within, say, five cents), I compared A2, A3, A5, and A6, and kept fiddling until they got reasonably close. The best match turned out to be 6:2 12ths in the bass and 3:1 12ths in the treble, for all three pianos! Once I had my target tuning curves, I just went back and tuned each piano. --Cy-- ----- Original Message ----- From: "John Formsma" <formsma at gmail.com> To: "Pianotech List" <pianotech at ptg.org> Sent: Saturday, May 05, 2007 9:59 AM Subject: Re: tuning two pianos together > I'm not a machine tuner anymore, and was tuning these pianos aurally. > I was wondering how machine tuners would have handled this kind of > situation. It seemed a situation in which a machine (perhaps) would > have been liability rather than an asset...
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