Sun Ra himself may be dead; under the direction of sax player Marshall Allen, his legacy carries on, regardless. One of the headline acts at this leftfield festival - where they are supported by oddball rock bands like Don Caballero - the Arkestra are testament to the singularity of one musician's vision. To briefly recap: during his time spent visiting Earth (the pianist-composer claimed to be from Saturn), Sun Ra created a musical universe that ranged from swinging orchestral jazz to avant garde composition, all couched in a mystic system. Not only that, he brought his work home with him, too. The members of the Arkestra lived, rehearsed, ate and took Egyptology lessons together - demonstrating a disciplined business behind the apparent chaos of the music. Even for the inexperienced, next Sunday's gig is worth a look: rather than a nostalgia act, the Arkestra is a piece of living history.
• Hokaben Festival, 93 Feet East, E1, Fri 7 to Nov 9
