As a reference point, Memory Theater, the new album from Massachusetts grind/power-violence crew Escuela Grind, clocks in at seven minutes shorter than Slayer’s Reign in Blood. Couple that with the fact that the album has been produced by Converge guitarist/producer extraordinaire Kurt Ballou, and that should be enough to dictate what you can expect from this vicious little outburst. The follow-up to their Indoctrination effort, from the moment Memory Theater screeches into existence with “Endowed with Windows,” there can be no doubt that the next twenty or so minutes are going to be truly violent. Unleashing wave after wave of hellish rage on your skull, Escuela Grind tears through the likes of “Cliffhanger” and “Faulty Blueprints” like the musical equivalent of a bull in a china shop. Ut...