<P> Thanks Stephen,
<P>That's why I wrote to the list, I want to attend convention classes, not do math :-)
<P>Nice to have the number to 100 decimal places though, maybe I can really impress somebody!
<P>Diane
<P> <B><I>Stephen Airy <stephen_airy@yahoo.com></I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Here's a method to figure it out, not accounting for<BR>inharmonicity. Since A4 is 440 Hz, an octave lower is<BR>1/2 the frequency, or 220 Hz. A0 is the lowest note<BR>on the piano, being 27.5Hz. Multiply 27.5 by the 12th<BR>root of 2 (1.0594630943593 on my TI-92 Plus), and<BR>multiply each result by 1.0594630943593 88 more times.<BR><BR>For example:<BR><BR>27.5 (A0)<BR>27.5 * 1.0594630943593 = 29.135235094881 (A#0)<BR>29.135235094881 * 1.0594630943593 = 30.867706328508<BR>(B0)<BR>30.867706328508 * 1.0594630943593 = 32.703195662575<BR>(C1)<BR><BR>continue the same pattern "up the scale" until you get<BR>to....<BR><BR>. . . . 3520 (A7) (may be a little bit off at the 12th<BR>digit to the right of the decimal point or something<BR>like that -- it often is on my calc)<BR>3520 * 1.0594630943593 = 3729.3100921447 (A#7)<BR>3729.3100921447 * 1.0594630943593 = 3951.066410049<BR>(B7)<BR>3951.066410049 * 1.0594630943593 = 4186.0090448096<BR>(C8)<BR><BR>You probably won't need all 12 or so digits. I<BR>recommend truncating the 4-digit (to left of decimal<BR>point) frequencies to 1 or 2 places, the 3-digit<BR>frequencies to 2 or 3 places, and the 2 digit<BR>frequencies to 3 or 4 places, whatever suits you.<BR><BR><BR><BR>--- Diane Hofstetter <DPNO2NR@YAHOO.COM>wrote:<BR>> <BR>> Does anyone know of a site on the net where I can<BR>> find a chart giving the frequencies for all the<BR>> notes on the piano? I am at the hearing safety<BR>> convention and it would be helpful to me in talking<BR>> with some of these people who understand frequencies<BR>> and hearing but nothing about piano tuning.<BR>> I don't have much time to research on the internet<BR>> because of classes, roommates, etc. and would<BR>> greatlly appreciate it if anyone has this<BR>> information.<BR>> Thanks !<BR>> Diane Hofstetter<BR>> <BR>> <BR>> <BR>> <BR>> <BR>> <BR>> ---------------------------------<BR>> Do You Yahoo!?<BR>> Yahoo! Sports - Coverage of the 2002 Olympic Games<BR><BR><BR>__________________________________________________<BR>Do You Yahoo!?<BR>Yahoo! Sports - Coverage of the 2002 Olympic Games<BR>http://sports.yahoo.com</BLOCKQUOTE><p><br><hr size=1><b>Do You Yahoo!?</b><br>
<a href="http://sports.yahoo.com/oly">Yahoo! Sports</a> - Coverage of the 2002 Olympic Games