The Sun Ra Arkestra's sonic attack has redefined atonal hijinks for years. Its varied music runs the course between linear and linear-as-a-busted spring. One minute it's boppin' with a finger-snap splendor and ease, and in the next minute the train careens into a brick wall. The late Afrofuturist Sun Ra claimed to be a visitor from Saturn on a mission to preach peace. With the Arkestra, he employed all manner of jazz subgenres, often at the same time. His name is synonymous with dissonance. The Arkestra is now directed by saxophonist Marshall Allen.