Robert Fripp unveiled a radically different King Crimson with 1981’s Discpline, a torrent of interlocking guitars, New Wave choruses, and spastic rhythms. While the LP single-handedly reinvigorated progressive rock in the decade, its British-American quartet line-up—guitarist Fripp, guitarist-frontman Adrian Belew, bassist Tony Levin, drummer Bill Buford—never earned equal buzz for their…