In 1909 the Ballets Russes visited Paris. They were the world’s most famous ballet group. Their director Diaghilev asked Ravel to write a ballet for them Ravel took about three years to compose the music for "Daphnis et Chloé". Other works he completed before the war broke out include "Shéhérazade" for soprano and orchestra (not to be confused with the work by Rimsky-Korsakov with the same title), and the "Piano Trio".