Though occultist Aleister Crowley (1875–1947) wrote his Rites of Eleusis, a cycle of seven mystery plays, in 1910, it was only decades later that a musical genre developed that could really do justice to their voluptuous inscrutableness. Local troupe Eleusyve Productions figured out that they need to be staged as "Wagnerian rock operas," as founder Jon Sewell puts it, with soaring '70s-style melodies and acidy guitar solos. Eleusyve's fourth show in the cycle, The Rite of Sol, opens tonight. To a pre-recorded backing track, the cast of personified planets and zodiacal signs sing Crowley's entire text—which makes it easier to memorize, especially the 112-line verse that Sewell, as Leo, sings in his best arena-rock tenor at the Rite's climax. Sunnie Larsen's electric viola adds yin to the production's thrusting yang. You won't see anything like it from any other fringe-theater group in Seattle. GAVIN BORCHERT Opens Fri., Nov. 2. 7 p.m. Thurs.-Sat. Ends Nov. 10.