The selections Whiteman included in the 1924 Aeolian Hall Concert, which had that curious title An Experiment in Modern Music, were divided into various sections, such as The True Form of Jazz and Recent Compositions with Modern Score. The intention was that together they would be audible proof that jazz-inspired music had come of age. These performances of Gershwin classics and hard-to-find rarities capture the 1920's and 30's jazz age style and offers a gamut of lesser known keyboard works, as well as Gershwin's only known works for violin and piano and for string quartet. The three orchestral works include Mr. Peress' theater orchestration of Gershwin's Strike Up the Band Overture, and the I've Got Rhythm Variations recorded in its original orchestration for the first time.