>The effect of unisons changing as the 2nd and 3rd strings are pulled in >a a phenonemon which applies more to the 5th and 6th octaves than in the >temperament octave according to measurements which I have taken. Even in >that range, on some notes the change is almost negligible. > >Jim Coleman, Sr. > 5th and sixth octaves, huh? Killer octave, huh? Now you've got me curious and I've got to try this on a couple of different soundboard designs. You don't suppose... Impedance, fundamental resonant frequency? It seems to me that all this almost certainly connects. Del, did you ever notice a correlation here? Well, anyway, when I get some pianos up to take some measurements from, I'll take notes and see if I can eventually make sense of anything. Ron N
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