New releases last four weeks: Bass

Review: Following mesmerising Marseilles mutations from the likes of Syqulone, Kabylie Minogue and Lisa More, Cain ? Muchi return to Gros:Oeuvre with their remarkable debut album. A heady tagine of grime, beats, techno, global bass and contemporary electronica with a title that either refers to famed Moroccan popstar or, far more likely, relates to meaning as 'universe', Dounia is a beguiling clash of western electronics and eastern bars, lyrics, and vocal harmonies. Fractured and macabre throughout from the distorted hardcore bass highs of 'J'wadi' to disarming vocal cries of 'Majdouba' this post grime, pre apocalypse opus is a trip from edge to edge.

Review: Patrick Conway is back on ESP Institute for a third time and the returns are as brilliant as the first two outings with plenty of emotional depth on display. Opener 'Loss' sets a melancholic tone with a repeating high piano note guiding a poignant chord progression, angelic voices and a modulating synth all sinking you in. That contrasts with a gritty rhythm section made from corroded dancehall elements all bathed in saturation for added authenticity. On the B-side, 'Silencio' explores negative space and rhythmic dialogue using anthemic synth stabs to unify the more meandering melodies. When chaos and order synchronise with force like this, there is fun to be had.

Review: It can be hard work keeping up with the myriad of different labels that Burnski aka Constant Sound aka Instinct heads up. This one leans more into UK garage and welcomes Main Phase for another succulent selection here. 'Gotta Maintain' kicks off with a nice dusty garage sound that will get your lip curled, and then Buckley brings broken beat rework with dubbed-out low ends. 'Soul Mirror' is a clean, bouncy sound with a cool synth breeze and 'Breather' brings some olds school references - the raga vocals, the bleeping synths and the monstrous bass. Brilliantly filthy.

Review: The return of Sorrow, characteristically with a gracefully morose new six-tracker, 'Unrequited'. "How can I forgive?" goes the rheum-smeared vocal sample opening out the Bristolian artist's new opener 'Monologue', after which amnestic choral lines follow like heavenly flights, singing thee to thy rest. Many a temporal restretching of the 2-step grief-garage paradigm follow, as on the slo-mo dancehall of 'Fallen Angel', the pan-fluting, blossom treeing dubstep of 'Unrequited', and an unlikely future downtempo saudade, 'Hedron'. It's nice to hear Sorrow back in action; without his continued presence, we might otherwise drown our own in other, less musical liquids.

Review: Sub Basics is back on his own fledgling label Temple of Sound - but under a new alias. As Tommy Basics he leads into a fresh house sound but still serves it up with plenty of his textbook bass-heavy low ends. 'Latitude' is a bubbly groover with dusty drums and fleshy basslines that get you moving and warmed up. 'Longitude' is even deeper, with smeared dub chords and woody percussive hits peppering the laid-back and inviting groove. Two stylish sounds from this versatile producer.

Review: Beatrice M's amusingly entitled Bait label has in fact become exactly that - very desirable to those who know. Its latest is a four tracker that serves as a taster of a forthcoming digital album by Trois-Quarts Taxi System. Behind the moniker is Eloi Petillon, a versatile producer, DJ and live act who has a knack for blurring genre lines. On this one, they mix up elements of dubstep, techno and d&b into soundscapes that are cerebral, hypnotic and psychedelic. Each one is made from futuristic sound design, field recordings and intricate polyrhythms: 'Metamorphism' warped, linear, deft and brilliant deep techno. 'Coma' is more busy, 'Fraction' has wispy synths and a sparse soundscape and 'Spectre' is a fizzy, skeletal sound that tickles the brain.