(Piano Duet). Gershwin's "Rhapsody in Blue" features some of the most striking, exuberant, and uniquely American melodies from the 20th century. Originally written for piano and jazz band, it was later orchestrated by Ferde Grofe. This intimate adaptation for piano duet (1 piano, 4 hands) by jazz composer and arranger Brent Edstrom delivers access to advancing pianists and provides an exciting musical collaboration and adventure!