For a band whose sound has evolved so thoroughly over the course of seven years, it’s almost too fitting to call itself the Escape Artist. The local group began as a loud post-punk outfit in 2008 with guitarist Fred Ashworth on vocals, drummer Chad Richman, and bassist Sam Ridder-Beardsley. It’s gone through several different phases; currently, its sound is a heady blend of drifting, ambient post-rock and psychedelic influences. Adding guitarist Ross Kerr and switching out Ashworth for Wanda Perkins on vocals further helped the group develop the dreamy, complex sounds it makes today. At Friday’s benefit for SlutWalk D.C., a movement that encourages people of all ages to speak out against sexual assault, expect to hear some new songs from the band’s recent recording session, currently being mixed at Developing Nations in Baltimore. Mournful alt-folk band Atoka Chase will open the show with a more rootsy vibe. The Escape Artist performs with Atoka Chase at 9:30 p.m. at the Black Cat Backstage, 1811 14th St. NW. $12. (202) 667-4490. blackcatdc.com.