What genre are both Euridice and Der Kaiser von Atlantis?
Euridice (Peri) Euridice (also Erudice or Eurydice) is an opera by Jacopo Peri, with additional music by Giulio Caccini. It is the earliest surviving opera, Peri's earlier "Dafne" being lost. (Caccini wrote his own "Euridice" even as he supplied music to Peri's opera, published this version before Peri's was performed, in 1600, and got it staged two years later.) The libretto by Ottavio Rinuccini is based on books X and XI of Ovid's "Metamorphoses"
Der junge Lord Der junge Lord ("The Young Lord") is an opera in two acts by Hans Werner Henze to a German libretto by Ingeborg Bachmann, after Wilhelm Hauff's "Der Affe als Mensch" ("The Ape as Man") from "Der Scheik von Alexandria und seine Sklaven" ("The Sheik of Alexandria and his Slaves").