the basic melodic motif was conceived around 1917–1918 during the composer's service in the U.S. Navy, but it was fully developed and composed into the song "Tea for Two" in 1924; it was published and first staged in Chicago later that year

Piano Concerto in F, III. Allegro agitato

Composed 1925

Also catalogued as Concerto in F for Piano and Orchestra: III. Allegro agitato or Piano Concerto in F: III. Allegro agitato. Sketched and composed between July and November 1925; the third movement was written in September 1925. George Gershwin did not assign opus numbers to his works, and there is no standard thematic catalogue numbering system for his oeuvre.

Pure Imagination

Composed 1970–1971

1970–1971 (written specifically for the film Willy Wonka & the Chocolate Factory, which was filmed in late 1970 and released in June 1971; lyricist Leslie Bricusse noted the song was written with Newley over the telephone in a single day during the film's development).

Overture from Porgy and Bess

Composed 1934–1935

1934–1935 (Gershwin began composing the opera in early 1934 and completed the score and orchestration in September 1935, with the introductory section written and finalized in 1935 prior to the September 30, 1935 premiere).