Established in 1982, The Chrysalis
Foundation is a 501(c)3 nonprofit arts and education organization that
encourages the creation of new acoustic musical instruments, and
supports compositions and performances for these instruments.
The Foundation is accomplishing these goals through the work of master
builder, composer, and writer Cris Forster, whose original acoustic
instruments are designed to explore new tunings in just intonation.
We are devoted to the idea that the future of music depends on the
integration of timbres and tunings as raw ingredients in an expanding,
flexible, and highly nuanced tonal palette. By recognizing the art of
tuning as a variable rather than a constant, music can once again
become a vital force capable of expressing and addressing the
complexities of our modern minds and spirits.
1982–2017 The Chrysalis Foundation
rights reserved. The graphics and texts contained within
this website may not be copied, republished, or translated in
whole or in part without written permission from the Chrysalis
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It is impossible to speak a language without sounding the letters that
spell the words of verbal expression.
It is impossible to play
an instrument without sounding the ratios that measure the intervals
of musical expression.
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PTC Mathcad Article
Building New Chrysalis II
October 2013–March 2015
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San Francisco Classical Voice Article
Intonation Music Videos
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We are pleased to announce that Cris
Musical Mathematics: On the Art and Science of Acoustic Instruments,
Musical Mathematics is
also available in more than
130 libraries, including The Metropolitan Museum of Art, The
British Library, Juilliard, Harvard, Dartmouth, Yale, Columbia,
MIT, New York Public Library,
University of Chicago, Stanford
University, California Institute of Technology, San Francisco
Conservatory of Music, five U.C. campuses, etc.
Musical Mathematics is the definitive
tome for the adventurous musician. Integrating mathematics,
music history, and hands-on experience, this volume serves as a
comprehensive guide to the tunings and scales of acoustic
instruments from around the world. Author, composer, and builder
Cris Forster illuminates the mathematical principles of acoustic
music, offering practical information and new discoveries about
both traditional and innovative instruments. With this knowledge
readers can improve, or begin to build, their own instruments
inspired by Forster’s creations shown in the 16 color plates.
For those ready to step outside musical conventions and those
whose curiosity about the science of sound is never satisfied,
Musical Mathematics is the map to a new musical world.