MUSIC—Shimmering, crystalline bubbles of sugar-synth emit from Purity Ring's carefully crafted lullabies. The Canadian duo's enveloping hiphop-pop perfectly captures the zeitgeist of the right now, and their inventive light show is captivatingly, strangely beautiful. NL
w/Blue Hawaii; Roseland, 8 NW 6th, 8:30 pm, $15, all ages

FILM—Nine years ago, with a mere $7,000, some guy named Shane Carruth made one of the most original, fascinating, and confounding films ever—the sci-fi mind-bender Primer. No longer MIA, Carruth is finally back with Upstream Color, a film that bewildered and thrilled at Sundance. You won't see anything else like it this year—or any other year. EH
Hollywood Theatre, 4122 NE Sandy, see Film Times, $7