The most successful bandleader of the 1920s, Paul Whiteman was an entertainment icon who played a major role in the mainstreaming of jazz. Whiteman and his band premiered Gershwin’s Rhapsody in Blue. Duke Ellington acknowledged his achievements. His astonishing ear for talent vaulted a who’s who of artists toward prominence. But Whiteman’s oversized presence eclipsed Black jazz musicians while his middlebrow music prompted later generations to jettison him from jazz history.W. Anth...