Igor Fyodorovich Stravinsky was a Russian composer, pianist, and conductor.
He is widely acknowledged as one of the most important and influential composers of 20th century music. He was a quintessentially cosmopolitan Russian who was named by Time magazine as one of the 100 most influential people of the century. He became a naturalized US citizen in 1946. In addition to the recognition he received for his compositions, he also achieved fame as a pianist and a conductor, often at the premieres of his works.
Stravinsky's compositional career was notable for its stylistic diversity. He first achieved international fame with three ballets commissioned by the impresario Sergei Diaghilev and performed by Diaghilev's Ballets Russes : The Firebird, Petrushka, and The Rite of Spring. The Rite, whose premiere provoked a riot, transformed the way in which subsequent composers thought about rhythmic structure, and was largely responsible for Stravinsky's enduring reputation as a musical revolutionary, pushing the boundaries of musical design.
After this first Russian phase Stravinsky turned to neoclassicism in the 1920s. The works from this period tended to make use of traditional musical forms, frequently concealed a vein of intense emotion beneath a surface appearance of detachment or austerity, and often paid tribute to the music of earlier masters, for example J. S. Bach and Tchaikovsky.