Genesis of a Music
Genesis of a Music is a book first published in 1949 by microtonal composer Harry Partch (1901–1974).
Partch first presents a polemic against both equal temperament and the long history of stagnation in the teaching of music; according to Alex Ross, this is "the most startling forty-five-page history of music ever written". In particular, Partch holds Johann Sebastian Bach responsible for "the movement toward equal-tempered tuning, which meant that composers could not absorb the scales of other world traditions; and the urge to make music ever more instrumental and abstract."[1]
He then goes on to explain his tuning theory based on just intonation, the ensemble of musical instruments of his own invention (such as the "Surrogate Kithara, a struck-string, harplike instrument",[2] and the guitar with movable frets he used to compose Barstow[3]), and several of his largest musical compositions.
The book has been highly influential to succeeding generations of microtonal composers, including Lou Harrison,[4] Ben Johnston,[5] and James Tenney.[6] A revised and enlarged second edition was published just before Partch's death in 1974.[7]