Memphis punks Ex-Cult invoke the kind of furiously paced hardcore that sent scores of adolescents to American Legion halls, Quonset huts, and basements across the country in the early-’80s and beyond. On the strength of that homage, the band’s third full-length record, Negative Growth, travels in jagged lines across a panorama of American hardcore, with ultra-fuzzy patinas at manic paces, likely thanks to the ever-watchful production of Ty Segall. “Attention Ritual” sounds like it was recorded inside a can of Folgers, but retains its energy in fiery waves of skuzz, kooky hooks, and feigned British accents. “Let You In” dispenses with fucking around, instead leading a punishing charge of liberating yowls and buzzsaw riffs. RYAN J. PRADO