Ballets Russes at a time when he was virtually unknown to compose the music for "The Firebird", after the composer Anatoly Lyadov proved unreliable, and this was instrumental in launching Stravinsky's career in Europe and the United States of America. Stravinsky's early ballet scores were the subject of much discussion. "The Firebird" (1910) was seen as an astonishingly accomplished work for such a young artist (Debussy is said to have remarked drily: "Well, you've got to start somewhere!"). Many contemporary audiences found "Petrushka" (1911) to be almost unbearably dissonant and confused. "The Rite of Spring" (1913) nearly caused an audience riot. It
The Rite of Spring the public would receive the work, and suggested that they might react badly if they thought they were being mocked. On the evening of 29 May, Gustav Linor reported, "Never ... has the hall been so full, or so resplendent; the stairways and the corridors were crowded with spectators eager to see and to hear". The evening began with "Les Sylphides", in which Nijinsky and Karsavina danced the main roles. "The Rite" followed. Some eyewitnesses and commentators said that the disturbances in the audience began during the Introduction, and grew in a crescendo when the curtain rose on the stamping