ear rubber, I'm about to effuse all over your polo. Bloc Party is a zeitgeist capturing, post-punk dynamo that fuses the greatest rhythm section in Brit rock history (thanks, Matt Tong) with profuse front-stage charisma. Vital, technically deft, absorbing, and riveting, the Bloc Party live show finds the band seamlessly roving from sonic booms to regal snail builds, and Mayan pyramid layering to resonant, sad-kid, weep induction. But look for the opener to steal the show. Brilliant Toronto-based blip and twitchers, Holy Fuck, play boozey sets to sublimely sweaty crowds. Like a non-electronic electronic band, the boys use live instrumentation and non-instruments (like film synchronizers, toy keyboards and toy phaser guns) to achieve electronic-sounding effects without the use of laptops or programmed backing tracks. This is a stellar lineup for a Wednesday night. The show takes place tonight at Metropolis.