Mary Timony has a history of creating rock ‘n’ roll with powerful women. She’s about to do it again with power trio Ex Hex. Mary Timony has always surrounded herself with players who value toothy guitar work as much as jangly hooks. After shredding her way onto D.C.’s stages in the early ‘90s with Autoclave, Timony honed her sound with Helium, and eventually cofounded Wild Flag with two-thirds of Sleater Kinney and Rebecca Cole of The Minders. Her current project, Ex Hex, finds her once again in good company. Though Betsy Wright and Laura Harris aren’t as well-known as Timony’s previous collaborators, they’ve helped her form a formidable power trio that’s as grungy and melodic as you’d expect. They play Schubas Tavern (3159 N. Southport Ave.) on Tuesday, March 18, at 7:30 p.m., the same day their debut 7-inch drops (“You’re Hot and Cold”). Priests and Blizzard Babies open. Tickets are $10, and can be purchased here.