Headed up by DFA's resident wizard Gavin Russom and multimedia artist Viva Ruiz (and featuring Tyler Pope and Jaiko Suzuki, among other NYC underground notables), the Crystal Ark purveys a kind of paganistic synth-pop that's alternately hypnotic and funky; the band's live sets are by turns funny, weird and awe-inspiring. The similarly minded indie-pop outfit Avan Lava, whose live performances include choreographed backup dancers and trippy light shows, opens up.