In Norway, musical categories are melting like the Arctic ice caps, with adventurous rock and jazz players often interchangeable. Krokofant are a case in point, combining metal-style guitar shredding and free sax blow-outs. Opener ‘Tommy Synth’ is typical, Haslan's fuzzed-up guitar and Mathisen's sinuous sax intertwined in a wild blur whose centrifugal pull prevents it blowing apart. Drummer Skalstad, 23, is a Tony Williams-style core of self-sustaining energy, with Haslan providing the low-end as Mathisen soars and finally smashes into shards on ‘Juice’. The sense of guitarist and saxophonist repeatedly pulling towards their own trips, yet sharing the same mission, lasts till the closing ‘Wrong Turn’. Here Haslan clangs and echoes in lonely, black orbit, then gets lost in Hendrix-heavy, rippling waves of feedback which phase in and out with psychedelic visual distortion, till Mathisen – equally capable of near-chaos – leads us back to melodic clarity. Not every improvisation is moulded to such effect, but Krokofant's post-speed-metal prog with a jazz sensibility rarely loses its vigorous force.