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"
Die Hochzeit Die Hochzeit ("The Wedding", WWV 31) is an unfinished opera by Richard Wagner which predates his completed works in the genre. Wagner completed the libretto, then started composing the music in the second half of 1832 when he was just nineteen. He abandoned the project after his sister Rosalie, who was the main supporter and the spokesman of the family, expressed her disgust at the story. Wagner destroyed the libretto.