Harrison also performs in the smooth jazz genre. His group Donald Harrison Electric Band has recorded popular radio hits and have charted in the top ten of Billboard magazine. He performs as a producer, singer and rapper in the traditional Afro-New Orleans culture and hiphop genres with his group, The New Sounds of Mardi Gras. The group, which has two recorded two cds, was started four years ago and has made appearances worldwide. Harrison is the Big Chief of the Congo Nation Afro-New Orleans Cultural Group which keeps alive the secret traditions of Congo Square.
Harrison also writes orchestral works for major orchestras.
Harrison was chosen as the "person of the year" by Jazziz magazine in January 2007. His latest CDs, 3D Vols. I, II, and III, feature him in three different musical genres. On Vol. I he writes, plays, and produces music in the smooth jazz, and R&B style. On Vol. II he writes, produces and plays in the classic jazz style. On Vol. III he writes plays and produces in the hiphop genre.
As of 2007, Harrison is working on a large orchestral work which investigates what it is like to be a participant in New Orleans culture. Harrison was forced to evacuate New Orleans after Hurricane Katrina, and proceeds from his albumNouveau Swing will go to victims of the hurricanes.
Harrison has nurtured a number of young musicians including the young Grammy-nominated trumpeter Christian Scott(Harrison's nephew), as well as Mark Whitfield, Cyrus Chestnut, Christian McBride, and The Notorious B.I.G.Harrison was featured in Spike Lee's HBO documentary, When the Levees Broke, and has appeared as himself in 9 episodes of HBO's Treme.
Harrison also directed the New Jazz School for the Isidore Newman School in New Orleans.