Hi Martin, No tempering a piano is due to a different (and larger) effect known as comma. If you tune perfect 3:2 fifths until you come back to your starting note name the pitch will be quite different. It is however true that inharmonicity does affect the octave size. At 12:22 PM 1/28/01 +0200, you wrote: > 6.77 10.04 13.73 18.66 23.51 35.20 > > is inharmonicity the reason why we have to temper a piano? Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Saskatchewan Centre of the Arts mailto:drose@dlcwest.com http://donrose.xoasis.com/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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