Autechre follow their excellent 'Exai' album with this four track brace of further productions. Like the last album, it's relatively funky Autechre: 'Tac Lacora' vaults and fragments in spine-reassembling spurts and spats, whereas 'M39 Diffrain' is wormholing steppers' techno concrète. 'Osla for n' is purely awkward arrhythmia perhaps intended to re-programme your bones in 4D and 'Newbound' offers some slightly more conventional harmonic and melodic comforts in their beautifully oblique manner..