"Since jazz is usually celebrated as an improvisor’s art, it may seem paradoxical that one of its major figures was a composer. Though Duke Ellington was a notable pianist, he declared, ‘My band is my instrument,’ and for over half a century he made it the medium of a peerless body of work. For Ellington, composition was never an abstract process, but a direct response to people and situations. He once said, ‘I see something and want to make a tone parallel,’ and the titles of his works are a catalogue of incidents, encounters and atmospheres. ‘Haunted Nights’, ‘The Mooche’, ‘Daybreak Express’, ‘Black, Brown and Beige’ – every Ellington piece enshrines a life in motion, pursued with spontaneity. And Ellington’s lifelong companions were the members of his band – among them the gutbucket growls of trumpeters Bubber Miley and Cootie Williams, the arching sensuousness of altoist Johnny Hodges and the rumbling majesty of Harry Carney’s baritone. As individual and sometimes contrary a set of virtuosos as ever shared a bandstand, he composed with these sounds and personalities in his head, writing specifically for them. And they provided the raw material for his astonishing originality in harmony and orchestration. To many, Ellington may have been known for such lush popular hits as ‘Sophisticated Lady’, but his colleagues recognised an attainment of another order. As Miles Davis put it, ‘Some day all the jazz musicians should get together in one place and go down on their knees and thank Duke.’"
January 1, 1970
https://en.wikiquote.org/wiki/Duke_Ellington