Boomkat:

Volume 4 is perhaps the most unsettling and uncanny in the series so far, mirroring the latter stages of The Caretaker’s 'Everywhere At The End Of Time’ series with what sounds like a trace echo of disembodied choral voices floating in and out of field recordings and found sounds coalescing in ghostly formation.

As per usual, we’re not gonna attempt to guess any of the included material, except to say that to us it sounds like deepest drone, concrète and sound art deployed at an almost imperceptible BPM, with diffused obscurities merging into foley, industrial and phantasmagoric atmospheres and the kind of multi-layered chicanery this lot have become so effortlessly good at piecing together.