This two-song EP from 1980 showcases what This Heat did so brilliantly, if so far below the radar that it is only posthumously that the groundbreaking British trio gets recognized: somehow they manage to be astronomically influential yet polarizing in the same breath. The eight-minute A-side, “Health and Efficiency” (titled from a bandmember’s in-joke about the benefits of bicycling to the recording studio) is an insistent and pulsating Krautrock projectile, hurtling forward anthemically on herky-jerky discordant guitar splatter and a pummeled and abused drum kit. It’s an obvious precedent to latter-day experimental rockers like Sonic Youth and Le Fly Pan Am. The 11-minute B-side, “Graphic/Varispeed,” is an epic sprawl of barely shifting drone that can just as easily hypnotize the listener as provoke them to rip it from the turntable in a fury. Graciously, the listener was originally encouraged to play it at the speed of their choice, 16, 33-1/3, 45, or 78 rpm. The band’s assertion that “it sounds great at all speeds” leaves it up to the listener to agree or rebut. – Brian Way