If anyone can be said to have turned the jazz big band into an orchestra it was Gil Evans, and Mike Gibbs is prominent among his musical descendants. Some of these 10 pieces are Gibbs adaptations of Evans scores; others are all Gibbs, with Evans's shade hovering benignly in the background. The typical slow-moving, spacey chords and sudden, sharp harmonic clusters come off beautifully. Governing the work of both composers is the Ellingtonian principle of writing not so much for instruments as for particular players. Notable among these are trombonist Mark Nightingale and alto saxophonist Finn Peters.