Causa Sui return with the perfect companion to last year's tour de force, "From The Source". Whereas that record was a tightly structured piece of work, that condensed many aspects of the band's sound into a concise 45 minute LP, "In Flux" presents the more loose and impulsive side of Causa Sui. After an introductory suite in classic Causa Sui territory, with deep fuzz riffs and syncopated grooves, things gradually become more outlandish. The following three vinyl sides see the band channeling Hot Rats-style jazz fusion, the oceanic post-rock of late-period Talk Talk, and the impulsive, anarchic experimentalism of Can's "Tago Mago" into their own beatific brew. On "Spree", the band abandons guitar entirely, relying on a dual synthesizer on top of drums and bass instead, yet maintains that uniquely Sui-an vibe.The centerpiece in this set, "Astral Shores", unfolds over 16 minutes - from gently hypnotic, ritualistic folk, through motoric psychedelia and back again. It's been many years since Causa Sui have sounded this unmoored on a studio record. "In Flux" is an essential chapter in the band's ever-changing oeuvre. The double 10" format might seem like an odd choice, but splitting the album into four short, distinctive parts makes perfect sense stylistically. Each side has a character all off its own, taking the listener somewhere different. Still a continious CD version is available as well.