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
Hades death, although Euripides' play ""Alkestis"" states fairly clearly that Thanatos and Hades were one and the same deity, and gives an interesting description of Hades as being dark-cloaked and winged; moreover, Hades was also referred to as "Hesperos Theos" ("god of darkness"). When the Greeks propitiated Hades, they banged their hands on the ground to be sure he would hear them. Black animals, such as sheep, were sacrificed to him, and the very vehemence of the rejection of human sacrifice expressed in myth suggests an unspoken memory of some distant past. The blood from all chthonic sacrifices including those to