Aristoxenus, a Greek writer on philosophy and music, a pupil of Aristotle, born at Taren-tum, Italy, flourished about 320 B. C. According to Suidas, he published 450 works on all imaginable subjects. All these are lost excepting hisAristoxenus 100472 ("Principles of Harmony "), published in Latin at Leyden in 1562 by Gogarinus, and in 1616 in Greek by Meursius, and subsequently inserted by Meibom in the Antiquœ Musicœ Auctores (2 vols. 4to, Amsterdam, 1652). Aristoxenus's theories of music were opposed to those of Pythagoras, who made music dependent upon mathematics, while the former admitted only the test of the ear.