Lude-loving hippies who played their Ozzy-era Sabbath LPs at a dragging 16 r.p.m. foreshadowed the slow, sludgy, helium-voiced tones of Yob. The effect is even grander live, when vocalist-guitarist-ringleader Mike Scheidt literally moves the air around concertgoers with the full force of his amplifier and endlessly elastic lungpower. It's hypnotic, harrowing and, thanks to the collateral eardrum damage that comes with it, impossible to forget. With Hull and Bezoar.
Sun., Feb. 10, 7:30 p.m., 2013