George Emanuel Lewis is an American composer, trombonist, and musicologist. Lewis is the Edwin H. Case Professor of American Music, Composition & Historical Musicology at Columbia University. His music spans genres including avant-garde jazz, contemporary classical and experimental music. He is renowned for his work as an improvising trombonist and considered a pioneer of computer music, which he began pursuing in the late 1970s; in the 1980s he created Voyager, an improvising software that he has used in interactive performances. Lewis's honors include a MacArthur Fellowship, a Guggenheim Fellowship, and the American Book Award received for his book A Power Stronger Than Itself: The AACM and American Experimental Music. He has been a member of the Association for the Advancement of Creative Musicians since 1971, when he joined the organization at the age of 19. From Wikipedia (https://en.wikipedia.org/wiki/George_...) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/b...)