Fourth full album from ambient pioneer. Coming to prominence with 1992's Microgravity - which along with the first couple of Aphex/Polygon Window CDs, defined the genre ambient - Geir Jenssen as Biosphere has made three of the '90s' best albums, culminating with last year's near beatless Substrata. The idea - as it always was thanks to Eno's On Land - is music as environment (reflecting, creating): working from his base in Tromso, Arctic Norway, Jenssen offers a polar, Apollonian exploration of the human psyche. Cirque is a perfectly constructed 47-minute sequence: cold clarity up against real depth of field, synth cycles dissolving into sudden moments of sonic revelation that sound like a waking dream - try the first 20 seconds of Black Lamb and Grey Falcon. (And if you think that's pretentious - your loss). Inspired by the story of a young American, Chris McCandless, who walked alone into the Alaskan wilderness and perished, Cirque balances the tightrope between warmth and unease, resolving into a moon melody that leaves you a peace. What a good record! [Jon Savage].