Hi Richard: When Wm Braid White (that great writer of the Piano Tuning and Allied Arts book) mentioned the 8:9 ratio is 204 cents, he meant that the major 2nd interval (the one with the 8:9 ratio) is 204 cents wide. ie From C to D is 204 cents when the interval is beatless at their respective coincident partials, the 9th of C against the 8th of D. I have included a program written in Basic which computes Hz to Cents for your convenience. This program is an attachment to this post. You should be able to use the info from the program text to setup your own spreadsheet program to do the same. It is called Hz2cents.Bas Jim Coleman, Sr.
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