Duke Ellington & His Orchestra Was established in 1924。 　　Ellington led the orchestra by conducting from the keyboard using piano cues and visual gestures; very rarely did he conduct using a baton. By 1932 his orchestra consisted of six brass instruments, four reeds, and a four-man rhythm section.As a bandleader, Ellington was not a strict disciplinarian; he maintained control of his orchestra with a combination of charm, humor, flattery and astute psychology. A complex, private person, he revealed his feelings to only his closest intimates and effectively used his public persona to deflect attention away from himself.