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<h2>References</h2>
<pre class="indented">
Abramowitz and Stegun, "Handbook of Mathematical Functions", Dover 1965.

Benson, "Music: A Mathematical Offering", Cambridge University Press, Nov 2006. Also available
     on-line: http://www.maths.abdn.ac.uk/~bensondj/html/music.pdf.  If the math side of my
     article is of any interest, you might like Benson's discussion of FM.

Chowning, "The Synthesis of Complex Audio Spectra by Means of Frequency Modulation", JAES 21:526-534, 1973

Frost, "Early F