Rising Leeds star Jack Sparrow launches his debut LP 'Circadian', following previous faultless Tectonic tribalist anthems 'The Chase' and 'Terminal'. Following in the footsteps of 2562, label boss Pinch and Cyrus (Random Trio), Sparrow is one the few dubstep producers capable of making the leap from hard-hitting 12" dancefloor releases to full length album. As the restrained 4/4 kick drum of opening track 'Loveless' pounds in, warming chords rise up, and snatches of soulful vocal cuts chime in over building drum layers - you already know you're headed for an involving journey with this album. Fans of Mala, Martyn, Quest and Silkie will feel at home with the vibe of the opening track, yet Sparrow takes things in his own direction with a sound that combines elements of deep house with a tribal side of dubstep. The vibe switches then for 'Dread' - a collaboration with fellow Leeds based producer Ruckspin - a dark, cold ragga-techno rhythm before Sparrow breathes new life into his original Tectonic tribal anthem, with a VIP version of 'The Chase'. 'Salvation' continues with a voodoo laden tribal theme, taking things into slightly more tech-y territories before we hear a fresh take on 'Terminal'. 'Shoal' pulls back a little on the pace, venturing into new territories as technology battles with organic sounds. Next up the sweet sounds of vocalist Indi Kaur (who sang on Pinch's 'Angels In The Rain') meet with Sparrow's adept production skills for a soulful meander in the endearing 'Subterranean' - a lighter touch on the album. 'Dune' takes things back into a more sinister world, with its lunging half-step rhythm and earthquake sub bass and ethno-decentralised atmospherics. 'Relapse' kicks in at 160bpm, Jack Sparrow demonstrating his prowess as a highly versatile producer with this "autonomic" take on his dubstep sounds - highly rhythmical whilst pushing forward the technological boundaries of sound. 'Regress' keeps with the uptempo bpm but steps back the pressure, allowing for memories of the early days of ambient jungle to seep in. Pause for a deep breath as the final track, 'Exit', gently delivers you out of the 'Circadian' journey. A unique track that warms your heart and chills your bones simultaneously, and lets you float off fully satisfied. 'A circadian rhythm is a roughly 24-hour cycle in the biochemical, physiological, or behavioural processes of living entities.'