Seasoned bands face a directional dilemma: Pander to fans’ expectations or stay true to the artistic authenticity that probably earned them attention in the first place, regardless of what that might actually sound like? Riverside’s Suicide Silence bravely opted for the latter on their self-titled fifth full-length earlier this year (their second with vocalist “Eddie” Hermida). Having helped to propel deathcore toward the mainstream with their early releases, the quintet clambered a few branches back down heavy metal’s family tree for Suicide Silence, which owes oodles to 1990s Deftones, Korn and Faith No More. Recorded live-in-the-studio by nu metal genre architect Ross Robinson, it’s a recklessly flawed, often confusing melding of brute rage and tortured introspection that, even when it stumbles, reeks of single-minded “fuck you” self-esteem. And isn’t that what metal is supposed to be all about? (Also Sunday, Dec. 17, at Whisky a Go Go).