Let’s get it out of the way up front: This is an 8CD box running roughly as many hours. It’s a lot. So maybe break it up into two-hour chunks, as it was originally broadcast live on the UK’s NTS radio in 2018. Each set has a flow, even a plot; the very first track, “t1a1,” comes drifting in slowly on waves of static, and the intensity builds gradually from the ominous vibes of “debris_funk” to the skittering, thumping “north spiral.” Many tracks are extraordinarily long; the second set ends with the 21:30 “turbile epic casual, stpl idle,” a cloud of shimmering tones that prefigures the last track (indeed, the last disc) in the box, the 58:22 “all end,” an extraordinarily beautiful piece that sounds like they’ve left you drifting at the bottom of the ocean, with a note saying they’ll be back later.