Although some of his recordings were on the periphery of jazz and his orchestra was at its most popular in the early '40s, Claude Thornhill's main importance to jazz was the influence that his arrangements and orchestra's sound had on cool jazz of the late '40s. After studying at a music conservatory and playing piano in bands based in the Midwest, Thornhill worked for Paul Whiteman and Benny Goodman in 1934, and for Ray Noble's American band of 1935-1936 (for whom he also arranged). He appeared on some Billie Holiday records and his arrangement of "Loch Lomond" was a big hit ...