Paul, Number A: Pipe organs are never in tune with themselves let alone any other instruments. They also don't have the inharmonicity that pianos do, so I just tune the piano to A=440 and proceed like the organ doesn't exist. Actually, if I know the organ is not scheduled to be tuned for some time and, especially if someone has requested that the piano "match" the organ tuning, I'll play A4, try a few different stops and measure them with RCT. Now I can tune the piano so that _A4_ is in tune with the organ and the requester is informed of that. 2: I would calculate separate tunings for the two pianos. If the pianos are similar size, their tunings may be similar also. I can imagine scenarios where it would work to average the two tunings. It's a judgment call. If the tunings look very different (compare the graphs), then there is some question as to whether the instruments should be played together. A tuning calculated for one is not going to work for the other. III: Actually, this could work. I just recorded a Yamaha P-120 keyboard, with a concert grand selected (it took me a while to figure out where to stick the mutes ;-), and the recorded graph looked somewhat similar to a CFIII graph. You just can't do anything about improving the variance numbers. Tom Cole Paul Mulik wrote: >Potentially silly questions from a novice technician: > >A: Suppose a piano needs to be tuned to another instrument (let's say a >synthesizer or pipe organ). Should I just make sure A4 matches and then >tune the piano as normal, or do I need to determine precisely what >temperament was used on the other instrument? In the case of a synthesizer, >I would think the temperament might vary depending on the setting (for >example "concert grand" might use a different temperament than "honky-tonk >piano" or "harpsichord"). > >2: Suppose I'm going to tune two pianos together, using RCT. It seems to >me I could just calculate a tuning for one of the pianos, and then use the >same tuning for both instruments (without recording the second piano). Any >reason why this wouldn't work? > >III: Going back to part A, what if I used RCT to record the other >instrument (let's say it's a synthesizer), and then used that to tune the >piano? What I mean is, suppose I started up the program as I always do, but >after clicking "record," suppose I played each of the A's on the synthesizer >(instead of the A's on the piano) and then proceeded to tune the piano as >usual. Would this work, or is this a crazy idea? > >Thanks, >Paul Mulik > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives > > > >
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