Eight Gigs: Sumac

Sumac’s latest, What One Becomes, doesn’t come out from Thrill Jockey for nearly two weeks after this show, meaning Sacto is one of the lucky cities that gets a sneak peek. An amalgamation of other bands, singer-guitarist Aaron Turner of Isis, Brian Cook of Russian Circles and drummer Nick Yacyshyn of Baptists form one trio hellbent on playing live and spreading the gospel of post- and sludge-metal fare. One listen to the 11-minute juggernaut “Rigid Man” should be more than enough impetus to pony up the cover for one helluva show. Bring earplugs and get ready to smash some stuff. 1517 21st Street, www.facebook.com/sumacband.