The turn of the millennium ushered in an apex visionary phase for English esoteric duo Coil. Relocating from the city to the coastal quiet of Weston-super-Mare freed them to follow even more fringe obsessions, fully untethered from peer influence. During a single six-month stretch in 2000 they released the devious underworld sequel to Musick To Play In The Dark, arcane drone summit Queens Of The Circulating Library, and a malevolent hour-long synthesiser exorcism prophetically titled Constant Shallowness Leads To Evil. This latter work remains one of the group’s most miasmic and mind-expanding creations, on par with Time Machines – a sustained divination of shuddering, psychoactive noise, rippling with the motion sickness of an all-seeing eye.

Thighpaulsandra characterises the album as “an exercise in brutality,” born from a thorny patch of his Serge modular unit that Peter “Sleazy” Christopherson found entrancing. Processing this sliver of electronics into a ravaged labyrinth was a trial and error process, aided by Christopherson’s vi­sual sense of sound, stretching and manipulating it for maximum spatial disorientating. Frequencies nauseously crawl across the stereo field, burrowing into the ear like a sinister brainwashing experiment. An outlier / centerpiece is the 13-minute alien tribalist sea shanty, ‘I Am The Green Child’, guided by John Balance’s sung-spoken free verse concerning vengeance, oblivion, and insanity, culminating in the memorable refrain, “We're swimming in a sea of occidental vomit.” But the rest of the record seethes in unhinged instrumental chaos, divided into 18 micro-movements of a composition called ‘Tunnel Of Goats’. Intended to scramble the functionality of a CD player’s shuffle mode, the piece throbs, thrashes, and flatlines in compressed frenzies of twisted synthesis, at the threshold of some bottomless purgatory, forbidding and unknown.