Maybe this is what she is talking about. The Reblitz book. second edition, p. 210, mentions that each half-step is higher to the twelfth root of two (1.0594631). Multiply A220 by this number and you will get A#, vibrating at 233.08188 vibrations per second, and so on. Of course this is theoretical and doesn't account for stretch. Clyde Hollinger, RPT > > Hi all math types! > > Can anyone out there help Andrea? > > >X-POP3-Rcpt: drose@louise > >Date: Sun, 22 Mar 1998 20:00:10 -0600 > >From: Andrea Ritchie <andrea@graceland.edu> > >X-Mailer: Mozilla 4.04 [en] (Win95; I) > >To: drose@dlcwest.com > >Subject: Please help me > > > >I am a college student with an assignment to find an equation that > >expresses the relationship between the frequency of a piano key and its > >location on the keyboard. I also have to write a function that takes the > >frequency and returns the key location, and I have to write a function > >that takes the key location and returns the frequency. I guess my > >question to you is if you could possibly tell me any information about > >piano keys and their frequencies, anything to help me with this > >assignment. I found your name on the Canadian Piano Home Page. If you > >could help me tonight, Sunday March 22, I would greatly appreciate it. > >Thanks for your time. > > > >Andrea Ritchie (andrea@graceland.edu) > > > > > Regards, Don
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