Bang on a Can

By Tristram Lozaw, Globe Correspondent  |  July 24, 2008

The venerable progressive ensemble wraps up its summer festival with a 30-musician marathon featuring the mixed-media oratorio "Shelter," plus music of special guest and minimalist guru Terry Riley and the far-too-underappreciated Frank Zappa. 4 p.m. $24. Mass MoCA, 87 Marshall St., North Adams. 413-662-2111. massmoca.org