“It is snow, it is snow!” declare the instruments in Schnee, the hour-long instrumental blizzard of canonic microtonality that will serve as the centerpiece to this year’s nine-hour Bang on a Can Marathon. Don’t set your Citi Bike on autopilot for the marathon’s usual World Financial Center home, though: It’s under construction, so the River to River Festival’s annual kickoff event will be held at Pace University. Arrive early for a diverse set by contemporary experimentalists Alarm Will Sound, followed by a Lukas Ligeti premiere for dueling drums. Stick around for the Brooklyn Youth Chorus, singing Nico Muhly’s Short Prayers in Respect of a Storm, and joyful noise duo Talk Normal. Then stay late for BOAC co-founder Michael Gordon’s glorious Yo Shakespeare and Asphalt Orchestra’s brassy take on Ruins drummer Tatsuya Yoshida’s Zwimbarrac Khafzavrapp.

Sun., June 16, 1 p.m., 2013