While the trombone was featured prominently in dixieland and swing music, it fell out of favor among bebop musicians, largely because instruments with valves and keys (trumpet, saxophone) were believed to be more suited to bebop's often rapid tempos and demand for technical mastery. In 1946, Bebop "co-inventor" Dizzy Gillespie encouraged the young trombonist's development with the comment, "I've always known that the trombone could be played different, that somebody'd catch on one of these days. Man, you're elected