It’s as if Combat Rock never happened: Rancid reproduces the Clash’s pre-“Casbah” mix of punk and reggae so skillfully that it almost doesn’t matter that its songs are merely first-rate retreads. With the fully noisy, semi-inspiredLunachicks and Ms. Guy and the Toiletboys at 7 p.m. at the Capitol Ballroom, 1015 Half St. SE. $10. (202) 544-1500. (MJ)