Poster for the opera Orpheus and Eurydice by Gluck. Orpheus and Eurydice (French- Orphee et Eurydice) is an opera composed by Christoph Willibald  Gluck, based on the myth of Orpheus. Orpheus is a Thracian bard, legendary musician and prophet in Ancient Greek religion. He was also a renowned poet and even descended into the Underworld of Hades, to recover his lost wife Eurydice.