Richard Friedman rchrd at
Sat Apr 29 18:29:08 EST 1995


Announcing the release on CD of SEQUENCIA, music composed by
Susan Alexjander, in partnership with biologist David Deamer.

All the compositions on this CD are derived from the molecular 
vibrations of DNA, adjusted to the registers of the human ear.

In SEQUENCIA, raw data derived from the light absorption spectra
of the four bases (adenine, cytosine, thymine, guanine) that make 
up the DNA molecule are converted into audible frequencies. These
are processed by a Macintosh computer and performed by a music
synthesizer, and are arranged into four pitch collections, or
"scales", based on the individual base molecules. The synthesized
material, mixed with vocals, cello, tabla, and violin, become 
the palettes for Alexjander's compositions, which range from 
somber and minimal to improvisational. 

The SEQUENCIA CD, released by Science & the Arts as part of their
Logos Series, which explores processes in the natural world, 
contains 3 works by Alexjander based on DNA: Eikos, Sequencia, and
Pataphysical Thymine. The performers include Susan Alexjander, 
synthesizer; Don Lax and Wendy Reid, violins; Karen Andrie, cello;
Diana Nieves, voice; Andrew McLester, tabla; William Trimble, alto

Susan Alexjander is a San Francisco Bay Area composer, performer,
teacher, and radio broadcaster. She has taught courses and seminars
on the physics and metaphysics of sound and music for over ten years. 
Currently Ms Alexjander is gathering material on the geometry and 
patterns in the mineral domain for her second Logos Series CD.
SEQUENCIA has appeared internationally on radio, CNN, and has been
used as art music for dance.

For more information about this very unusual recording, contact
  Science and the Arts, PO Box 8162, Berkeley CA 94707

(CD $15, cassette $10.  Add $2 for postage & handling.)

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