Tonight Cacaw, described by the Reader‘s Monica Kendrick as a “basement-show supergroup” with a “minimalist punk-metal” sound, play a free show at the Empty Bottle (1035 N. Western). Trippy-scuzzy-fuzzy trio Moonrises, which features Plastic Crimewave Sound’s Steve Krakow, and electro-drum outfit Running start things off at 9:30 PM.