READING:
PITCH CLASS SETS
PAUL NELSON
Revised 05.16.2004

This paper is about Pitch Class Sets - a method of describing harmonies in 20th Century music. Paul writes:

Pitch class sets are the chemistry of harmonic colour. Modern composers will use pitch class sets like chemistry., to mix and create interesting and vibrantly colourful harmonic sounds, which they will then use to create works of music.

(!!!)

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LINK

PITCH CLASS SETS:
http://composertools.com/Theory/PCSets/

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