Inharmonicity

[Paul Milkie]

David, in Australia;
Inharmonicity is the discrepancy between the
theoretical frequencies of partials and their actual
frequencies.With the exception of the first
partial(the fundamental), the partials of piano tone
are sharper than their theoretical
frequencies, which would be exact multiples of the
fundamental. This necessitates tuning octaves wider
than theoretical in order to obtain an acceptable
compromise of these discrepancies. The first partial
of A4 is tuned to 0 cents deviation, but all notes
above it are tuned increasingly sharper,and all notes
below it are tuned increasingly flatter than what they
would be theoretically. The result is the piano's
stretch.
(P.50 of the Verituner 100 user guide).



 
____________________________________________________________________________________
Food fight? Enjoy some healthy debate 
in the Yahoo! Answers Food & Drink Q&A.
http://answers.yahoo.com/dir/?link=list&sid=396545367