Two ladies playing the harp may not sound like something you'd run out to see on a Monday night, but when you find out they'll be playing Metallica cover songs, it becomes a whole lot more intriguing. They're not going to stick to just the softer songs, either — they tackle it all and bring a completely new vibe to the music. With The All-Girl Boys Choir and KPSoloman5000. $8-$10. 9 p.m. The Milestone, 3400 Tuckaseegee Road. www.themilestoneclub.com.