What genre are both Euridice and Der Kaiser von Atlantis?
Der Kaiser von Atlantis Der Kaiser von Atlantis oder Die Tod-Verweigerung ("The Emperor of Atlantis or The Disobedience of Death") is a one-act opera by Viktor Ullmann with a libretto by Peter Kien. They collaborated on the work while interned in the Nazi concentration camp of Theresienstadt (Terezín) around 1943. The Nazis did not allow it to be performed there.
Die Kluge Die Kluge. Die Geschichte von dem König und der klugen Frau ("The Wise [Girl]. The Story of the King and the Wise Woman") is an opera in 12 scenes written by Carl Orff. It premiered in Frankfurt, Germany, on 20 February 1943. Orff referred to this opera as a "Märchenoper " (fairy tale opera). The composer also wrote the libretto, based on "Die Kluge Bauerntochter" ("The Peasant's Wise Daughter") from the Grimm's Fairy Tales. A performance lasts for about 90 minutes and is often paired with Orff's "Der Mond".