Question: is swan lake an opera?
Answer: Swan Lake (Russian: Лебеди́ное о́зеро, romanized: Lebedínoye ózero), Op. 20, is a ballet composed by Pyotr Ilyich Tchaikovsky in 1875–76. ... The scenario, initially in two acts, was fashioned from Russian and German folk tales and tells the story of Odette, a princess turned into a swan by an evil sorcerer's curse.