BLACK COBRA San Francisco dirge and doom rockers make a hell of a racket for a duo. The thickly rolling guitars and pounding drums slither along while effects and howled vocals load up on the bombast. Black Cobra tosses in psychedelic and spacey effects while taking Black Sabbath on a joyride. Also on the bill are Howl, Struck by Lightning and Machete! $10-$15, Tremont Music Hall, www.tremontmusichall.com (Samir Shukla)
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R&B LIVE If there's one thing Charlotte has managed to produce consistently, it's singers. The return of this weekly open mic event gives you the chance to see what the city has to offer in the soul department and maybe even be the first to hear a diamond in the rough perform with a live band. $10, Sunset Club, www.sunsetclubcharlotte.com (Mike McCray)