A King Crimson concert is always an illuminating experience—in that it proves the superhuman instrumental feats and pulverising power these prog-rock pioneers demonstrate on record are indeed the work of humans and not machines. This collection of live performances highlights the unique mind-bending properties of this band’s many phases, including the primal, proto-metal jazz of their late-’60s genesis, the weirdo world beat of their early-’80s reformation and the mutant funk of their ‘90s double-trio formation.