Thomas "Tom" Pierson (born March 11, 1948 Ashland, Wisconsin)is an American composer, conductor and film director. 　　At the age of 13, he debuted as a soloist with the Houston Symphony.He studied at the Juilliard School to become a classical pianist and later turned to jazz. He conducted Leonard Bernstein's Mass at the Metropolitan Opera. He has conducted other works as well, including Candide. He has scored films for Woody Allen, notably Manhattan, and Robert Altman's Quintet. He filmed Turkey Boy in Japan in 2008.