The gifted, versatile saxophonist/cla rinetist/compos er, John Ellis, occupies an imaginary (and extremely imaginative) space directly between the celebratory, welcoming spirit of New Orleans and the edgy, frantic streets of New York City. Both as the leader of his own eclectic projects and as an in-demand sideman for a mind-boggling number and variety of artists, Ellis expresses a keen intellect and easy virtuosity while maintaining a mischievous gleam in his eye and never letting tongue stray far from cheek. He's ambitious composer as well as an agile musician.