Ballet (music) of Tchaikovsky's "Swan Lake" after the composer's death. In many cases ballets were still short scenes within operas, to enable scenery or costume changes. Perhaps the best-known example of ballet music that is part of an opera is the "Dance of the Hours" from Amilcare Ponchielli's opera "La Gioconda" (1876). There was a violent change in mood when Igor Stravinsky's ballet "The Rite of Spring" (1913) was performed. The music was modernist and dissonant, and the movements were highly stylized. In 1924 George Antheil wrote "Ballet Mécanique," which was actually for a film of moving objects, not for dancers, but
The Rite of Spring the disturbances, while deplorable, were merely "a rowdy debate" between two ill-mannered factions. Emile Raudin, of "Les Marges", who had barely heard the music, wrote: "Couldn't we ask M. Astruc ... to set aside one performance for well-intentioned spectators? ... We could at least propose to evict the female element". The composer Alfredo Casella thought that the demonstrations were aimed at Nijinsky's choreography rather than at the music, a view shared by the critic Michel-Dimitri Calvocoressi, who wrote: "The idea was excellent, but was not successfully carried out". Calvocoressi failed to observe any direct hostility to the composer—unlike, he said,