Swan Lake, composed by Pyotr Ilyich Tchaikovsky in 1875–1876, is a seminal work of classical ballet. Its premiere in 1877 was initially met with mixed reviews, but later revisions solidified its status as a masterpiece. The ballet’s lyrical themes, dramatic narrative, and innovative orchestration revolutionized the genre, blending symphonic complexity with dance. The "Ballet Suite, Op. 20" includes highlights like the "Scene" and "Dance of the Swans."