A Dictionary of Greek and Roman biography and mythology

(Ἱέραξ).

1. A musician of the Mythic period, before the Trojan war. He is said to have invented the Hieracian measure, νόμος ἱεράκιος, and to have been the friend and disciple of Olympus the musician. He died young. (Pollax, 4.10; Fabr. Bibl. Gr. vol. i. pp. 136 and 726.)