Lower East Side basement boîte National Underground is the spot for techno rhythms tonight, with Hidden Recordings mastermind Deepak Sharma welcoming artists from the burgeoning label's roster. Tonight's party features a guest set from the U.K.'s Chris Finke, producer of Hidden's Don't Try This at Home EP and a resident at Birmingham's "Atomic Jam" blast; his fellow Hidden artist Domingo Cava plays as well.