> Julia asks: >> Would someone please confirm or correct... >> If A4 on a piano is tuned to 443cps then it is tuned about 11.466 cents > sharp. Correct? > > Very close. It is actually 11.76 cents. The formula involves a logarithm, and so it is only approximated by the proportionality equation that you used. > > Robert Scott Or 11.7638100364, or however many decimal places you like, the formula being 1200*LN(freq2/freq1)/LN(2). Ron N
This PTG archive page provided courtesy of Moy Piano Service, LLC