Sir Orfeo as being a parallel dimension to the everyday world rather than the Land of the Dead as in the Greek myth of Orpheus and Eurydice. The ability to move between one world and the other distinguishes the tale as told in its various British versions such as "Sir Orfeo" and the Shetland ballad "King Orfeo" where the captors are envisaged as inhabitants of a parallel fairy domain rather than as the infernal region of the Dead ruled over by Hades as in the Greek myth. Katharine Briggs sees the tale as related in British folk narratives as being equally influenced
Orpheus of Demeter Chthonia and that of the "Kóres Sōteíras" (Greek "Κόρες Σωτείρας" "Saviour Maidens"). Also in Taygetus a wooden image of Orpheus was said to have been kept by Pelasgians in the sanctuary of the Eleusinian Demeter. According to Diodorus Siculus, Musaeus of Athens was the son of Orpheus. The "Argonautica" () is a Greek epic poem written by Apollonius Rhodius in the 3rd century BC. Orpheus took part in this adventure and used his skills to aid his companions. Chiron told Jason that without the aid of Orpheus, the Argonauts would never be able to pass the Sirens—the same