Jazz Combo - Level 3 - Digital Download SKU: A0.913567 Composed by Mike J.D. Roberts. Blues,Jazz. Score and parts. 11 pages. Mike Roberts #6871475. Published by Mike Roberts (A0.913567). Easy J is a bebop tune written for the University of London Jazz Quintet (as performed on the mp3). It’s reminiscent of the early Charlie Parker style, with a few tricky and intricate runs, but which should be easily playable by amateurs.