Philadelphia’s Basic is a trio of musicians from semi-underground acts, the most famous of which is probably Chicago’s venerable post-rock band Tortoise. Tonight they are joined at the Miniplex with Eta Corina, a cool-ass duo composed of Ben Chasney of Six Organs of Admittance and Sake violinist Aolani. Don’t sleep on this mid-week heater; it looks like a good blast from the experimental furnace ($20, $10 advance).
