Harry Betts was an American jazz trombonist and prolific arranger known for his sophisticated and swinging big band charts. A prominent figure in the West Coast jazz scene, Betts's arrangements often featured lush harmonies, intricate counterpoint, and a keen sense of melodic development. His work, including his contribution to the jazz band library catalog, showcases his mastery of orchestration and his ability to craft engaging and dynamic musical landscapes. Betts's arrangements remain a testament to his enduring influence on jazz.