>Hi Mark, > >I am afraid you are quite wrong about pianos not changing significantly. >Unfortunately the sound board influences inharmonicity, and the sound board > changes with humidity and temperature. Some one has used the term >"impedance" of the board--not truely the correct term, but it does change. >Many FAC users will attest to the numbers changing over time. >Regards, >Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Yo Don, So what *is* the correct term? Ron N
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