A. Broadbent, a prominent figure in 20th-century jazz, was an American arranger whose innovative work significantly shaped the sound of big band music. Active from the 1940s through the 1970s, Broadbent's arrangements were characterized by their sophisticated harmonies, intricate counterpoint, and a keen understanding of orchestral color. He collaborated with numerous iconic bandleaders, including Count Basie and Duke Ellington, contributing charts that became staples of their repertoires. Broadbent's ability to blend traditional swing elements with modern jazz sensibilities made him a highly sought-after arranger, leaving an indelible mark on the evolution of jazz ensemble writing.