What music style did Duke Ellington create and how was it different than other styles?

Duke Ellington was a pivotal figure in the development of big band jazz, characterized by its sophisticated arrangements and rich orchestration. Unlike traditional jazz, which often emphasized improvisation and small ensembles, Ellington's music incorporated complex harmonies and was meticulously arranged for larger groups, blending elements of blues, classical, and swing. His innovative approach to composition and orchestration allowed for greater emotional expression and showcased the individual talents of his band members, setting his work apart from other jazz styles of the time.