Pluto (mythology) authorship of the lyrics that have survived as the "Orphic Hymns", among them a hymn to Pluto. Orpheus's voice and lyre-playing represented a medium of revelation or higher knowledge for the mystery cults. In his central myth, Orpheus visits the underworld in the hope of retrieving his bride, Eurydice, relying on the power of his music to charm the king and queen of Hades. Greek narratives of Orpheus's descent and performance typically name the ruler of the underworld as "Plouton", as for instance in the "Bibliotheca". The myth demonstrates the importance of Pluto "the Rich" as the possessor of a
Greek mythology and she burst forth from his head—fully-grown and dressed for war. The earliest Greek thought about poetry considered the theogonies to be the prototypical poetic genre—the prototypical "mythos"—and imputed almost magical powers to it. Orpheus, the archetypal poet, also was the archetypal singer of theogonies, which he uses to calm seas and storms in Apollonius' "Argonautica", and to move the stony hearts of the underworld gods in his descent to Hades. When Hermes invents the lyre in the "Homeric Hymn to Hermes", the first thing he does is sing about the birth of the gods. Hesiod's "Theogony" is not only