Once again heralding summer in the city — and, more specifically, the annual River to River Fest — in all its free-music magnificence, the Bang on a Can Festival is a temporary autonomous zone for both hardcore contemporary-music freaks and open-eared day-trippers. This year’s eight-hour, 20-work edition includes Meredith Monk and Theo Bleckmann singing music from Facing North, Dawn of Midi performing selections from the trio’s 2013 minimalist hit Dysnomia, and a cappella combo Roomful of Teeth’s selections from Caroline Shaw’s delightful Partita for 8 Voices. The Bang on a Can All-Stars perform founding composer Julia Wolfe’s mind-bending Big Beautiful Dark and Scary and Louis Andriessen’s loud and brutal Hoketus. Hang around for Michael Gordon’s Timber, a grand finale involving six amplified sawhorses.
Sun., June 22, 2 p.m., 2014