How do you define insanity? Two words: Heavy Medical. The latest project from Philly’s Nervous Sex cohorts David Angiolini and David Altman takes their madcap enthusiasm for auditory onslaughts to new heights, trouncing ears with brutal bass, buzz saw guitars, violent drums and static vocals. And if musical destruction is your cup of tea, (which it should be, because there is nothing more awesome and humbling than a little sonic pummeling), find your way to Danger Danger Gallery, where they’ll be performing tonight with New York’s grindcore trio Child Abuse and Brooklyn’s black metal outfit LITURGY. Danger Danger Gallery, 5013 Baltimore Ave., 8 pm, $5 – $10, All Ages – Annamarya Scaccia