Though Throbbing Gristle perhaps haven’t observed the showbiz adage “always leave them wanting more” to its fullest, this 10-CD addendum of live material, recorded in 1980-81 in Germany, America and the UK, is strangely essential. The sheer barrage and quantity is the point, part of the punitive aspect of the Throbbing Gristle experience?Genesis P Orridge is part MC, part shrieking sick man of the post-industrial West as the band belch a toxic, untreated barrage of antiambient noise, relieved only by occasional electronic interludes. It’s an unabashed challenge worth rising to.