Lots of electronic groups incorporate elaborate visuals into their live shows, but the UK duo of Andy Turner and Ed Handley, aka Plaid, took things one step further with their most recent release, last year's CD-DVD set Greedy Baby (Warp)--their video designer and director, Bob Jaroc, gets equal billing on the cover. (He's also coming along on this tour.) The discs allow folks who've missed Plaid live to enjoy at least a portion of the meticulously engineered synesthesia their expansive post-techno creates with Jaroc's freaky, wondrous films and animations. The most recent treat for latecomers to Turner and Handley's music, though, is the new retrospective of their pre-Plaid work with Ken Downie as the Black Dog: the double-CD set Book of Dogma (Soma) collects all the group's hard-to-find early-90s releases for a one-two punch of gritty, hip-hop-infused techno. Three DJs from WLUW's weekly Abstract Science program--LSE, Henry Self, and Chris Widman--spin before and after. a 9:30 PM, Empty Bottle, 1035 N. Western, 773-276-3600 or 866-468-3401, $15.