Philip Gonzales gonzales at musictech.com
Mon Apr 27 01:30:07 EST 1998

Thank you for the response.  This helps very much.

Even though these frequencies are not in the audible range, not even
close, they
represent either multiples of the frequencies of the audible spectrum,
or natural
harmonics of fundamentals in a musical scale.

We hear and respond to frequencies that have been organized into common
scales in
our musical culture, but the frequencies upward of 40kHz have been
proven to
affect the listener profoundly when they can be accurately reproduced.

Again, thanks for the help.
Philip Gonzales
gonzales at musictech.com

Virginia B. Pett wrote:

> Didn't someone do music from DNA sequences?
> Vibrational frequences are in the Infrared (IR) part of the
> spectrum, from 100 reciprocal centimeters (wavenumbers) to 4000
> centimeters (wavenumbers); or from 1.0 x 10 to the -4 power meters, to
> x 10 to the -6 power meters.  A tiny wavelength.
> Since
> speed of light = wavelength x frequency
> a tiny wavelength gives a very high frequency.
> So 4000 recip cm = 1.2 x 10 to the +14 power reciprocal seconds (Hertz
or cps)
> and 100 recip cm = 3.0 x 10 to the +12 power reciprocal seconds (Hertz
or cps)
> Since musical note A is 440 Hz (cps) you will have a hard time hearing
> vibrational music of molecules.  Possibly you could divide the
> by some factor to get the notes of the musical scale.
> The book in our library, Biochemistry of steroids and other
> by W. R. Nes and M. L. McKean has a chapter (3) on analytical
> with a section on IR spectroscopy of steroids.  (Baltimore: Univ.
> 1977)
> Maybe the crystal vibrations (phonons) are low enough frequency to be
> closer to the musical scale.  I don't know if anyone has measured
these in
> hormone crystals.
> Thanks for a great question for my physical chemistry final exam!
> >Hello,
> >I have a unique request.  I am a composer, and would like to find
> >information on the frequencies of vibration of the crystalline
> >structures of human hormones.  I have some background in the
> >so would appreciate any pointers toward such information, including
> >scholarly papers that are on the Internet.
> >Thank you in advance,
> >Philip Gonzales
> >gonzales at musictech.com
> Virginia B. Pett
> Professor of Chemistry
> The College of Wooster                  Telephone:  330-263-2114
> Chemistry Department                    FAX:  330-263-2386
> 943 College Avenue                      e-mail:  pett at acs.wooster.edu
> Wooster, OH 44691-2363

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