Which had more acts/ scenes, The Snow Maiden or Sadko?
The Snow Maiden The Snow Maiden (subtitle: A Spring Fairy Tale) (Russian: Снегурочка–Весенняя сказка , "Snegúrochka–Vesennyaya Skazka") is an opera in four acts with a prologue by Nikolai Rimsky-Korsakov, composed during 1880–1881. The Russian libretto, by the composer, is based on the like-named play by Alexander Ostrovsky (which had premiered in 1873 with incidental music by Tchaikovsky).
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".