Austinite metal foursome The Sword began delivering cutting, thrusting noise back in 2003. Excepting original drummer Trivett Wingo’s replacement by Jimmy Vela in 2011, The Sword’s founding members—vocalist/guitarist J.D. Cronise, guitarist Kyle Shutt and bassist Bryan Richie—tirelessly follow in the footsteps of their doom/metal forefathers, such as Black Sabbath and Sleep. The band’s 2012 release Apocryphon was the first Sword recording sans Wingo, and if you can radically differentiate the percussion on Apocryphon from that on Age of Winters, Gods of the Earth or Warp Riders, you should be writing about metal for the Alibi. (Serio. Send an email to email@example.com.) Slash a path to Launchpad(618 Central SW) on Sunday, March 23, to take in The Sword and Atlanta, Ga.-based heavy, ambient, experimental five-piece O’Brother. This 13-plus shred-fest ramps up at 8pm, and admission is $20.