Greek sea gods conform to a single type: that of Homer's "halios geron" or Old Man of the Sea: Nereus, Proteus, Glaucus and Phorkys. These sea gods are not as powerful as Poseidon, the main god of the oceans and seas. Each one is a shape-shifter, a prophet, and the father of either radiantly beautiful nymphs or hideous monsters (or both, in the case of Phorkys). Nymphs and monsters blur, for Hesiod relates that Phorcys was wed to the "beautiful-cheeked" Ceto, whose name is merely the feminine of the monstrous Cetus, to whom Andromeda was due to be sacrificed. Each appearance in myth
Kemençe of the Black Sea and Pontus region is Horon. In Greece, pontic lyra has been played in areas populated by Pontian refugees since the beginning of the 20th century. It is also played by Greek communities around the Black Sea, such as those in Mariupol. The instrument is also popular among the Hemshin peoples, who originate from the eastern Pontus. Due to the size and spread of the Pontic Greek, Hemshin and Turkish diasporas, the instrument is now widely played in urban centers throughout the world. Classical music ensembles outside Greece and Turkey increasingly include a Kemençe. The Cappadocian Kemane is a musical instrument