text: In the middle movement of a concerto by this composer, two B-flat clarinets and a B-flat bass clarinet back a solo trumpet.
full_question: In the middle movement of a concerto by this composer, two B-flat clarinets and a B-flat bass clarinet back a solo trumpet. This composer's Short Story was originally meant to be part of a set of pieces later arranged for violin and piano in 1942 by Jascha Heifetz, his Three Preludes. His last concert work was a set of variations for piano and orchestra based on a melody from Girl Crazy. A four note tympani motif opens this man's only piano concerto. Another piece of his was orchestrated by Ferde Grofe from a score originally written for Paul Whiteman's jazz ensemble. For 10 points, name this composer of the Concerto in F who wrote "I Got Rhythm" with his lyricist brother Ira, as well as Rhapsody in Blue.
first_sentence: In the middle movement of a concerto by this composer, two B-flat clarinets and a B-flat bass clarinet back a solo trumpet.
raw_answer: George Gershwin