Match each of the following with the musician they describe. Some musicians may have more than one matching description. 1: He was the most in-demand and frequently recorded bass player of his generation. 2: He was discovered by Duke Ellington. 3: He was the first drummer to lead a famous orchestra (one that played regularly at the Savoy Ballroom). 4: Through his outstanding playing, he changed the way that bass was played and as a result also changed the way that rhythm sections played. 5: He was the first great Swing drummer, and he could outplay virtually all other drummers. 6: He was Benny Goodman's drummer for years and eventually started his own band. 7: He was the first to record bass solos that departed from the walking-bass style. 8: He was the first drummer to achieve "star" status (he became a "matinee idol"). 9: He was a drummer who was one of the foundations of Count Basie's orchestra (which had a rhythm section that was considered the best of the era).