What was Tommy dorsey contribution to jazz?

Tommy Dorsey was a significant figure in jazz, known for his exceptional Trombone playing and smooth, expressive style. He was a key bandleader during the swing era, leading the Tommy Dorsey Orchestra, which became famous for its rich sound and popular hits. Dorsey's innovative use of the trombone as a lead instrument helped elevate its status in jazz, while his orchestration and arrangements contributed to the development of big band music. His work laid the groundwork for future generations of musicians in the genre.