Makes sense (er, cents)

ACD sets me straight and points out an error in my last post (since corrected). I wrote mistakenly that there is 6 cent difference between A=440 and A=446. The real difference is more on the order of 23 cents I am informed. Here’s ACD’s errata notice and cent-calculation formula:

“The difference between A=440 and A=446 expressed in cents is more on the order of 23 cents, not 6 cents, computed thus: R=2^n/1200, where R=frequency ratio, and n=cents. Frequency ratio R=446/440=1.0136. Therefore n=23 (which works out to exactly R=1.0134 to four decimal places).”

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