Claude Thornhill (*August 10, 1909 at Terre Haute, Indiana † July 1, 1965, New York City) was an American pianist, arranger and bandleader. As a youth, he was recognized as an extraordinary talent and formed a traveling duo with Danny Polo, a musical prodigy on the clarinet and trumpet from nearby Clinton, Indiana. As a student at Garfield High School in Terre Haute, he played with several theater bands. After playing for Paul Whiteman, Benny Goodman, Ray Noble, and Billie Holiday, and arranging "Loch Lomond" and "Annie Laurie" for Maxine Sullivan, in 1940 he founded his Claude Thornhill Orchestra. Although the Thornhill band was originally a sophisticated dance band it became known for its many superior jazz musicians and for Thornhill's and Gil Evans' innovative arrangements; its "Portrait of a Guinea Farm" has become a classic jazz recording. The band played without vibrato so that the timbres of the instruments could be better appreciated, and Thornhill encouraged the musicians to develop cool-sounding tones. The band was popular with both musicians and the public; the Miles Davis Nonet was modelled in part on Thornhill's cool sound. The band's most successful records were "Snowfall," "A Sunday Kind of Love," and "Love for Love." The band ceased operation in 1942 when Thornhill entered the military, where he performed with Artie Shaw's United States Navy band, then was revived from 1946 to 1948 at New York. In the 1950s Thornhill became Tony Bennett's musical director, then toured with small groups.