The Elizabeth Sprague foundation commissioned him 
The Elizabeth Sprague foundation commissioned him to write a half-hour ballet for six dancers; the result was 1927's Apollo. In collaboration with George Balanchine, he created Agon, while his late works include Requiem Cantadides and the opera The Rake's Progress. For 10 points—name this composer of Petrushka and The Firebird.
The Elizabeth Sprague foundation commissioned him to write a half-hour ballet for six dancers; the result was 1927's Apollo.
Igor Fyodorovich {Stravinsky}