Marsyas, the unhappy rival of Apollo, was said to be a native of Celænæ in Phrygia. Olympus was a pupil of Marsyas (Schol. in Aristoph. Eq. 9). By Plutarch (Mus. xi.) he is called ἀρχηγὸς τῆς ῾Ελληνικῆς καὶ καλῆς μουσικῆς. cf. Arist., Pol. VIII. v. 16.