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).
The Demon (opera) The Demon (Russian: Демон ) is an opera in three acts (six scenes) by Russian composer Anton Rubinstein. The work was composed in 1871. The libretto was by Pavel Viskovatov, based on the poem of the same name by Mikhail Lermontov.