On Saturday, April 29, the Even Exchange Dance Theater will perform its second annual improv concert, Walls … real or imagined (pictured below), at Arts Together in Raleigh. Don’t plan to sit back and watch the show: The theater company invites its dancers, musicians, set and lighting designers, and audience to inspire the improvisational process. Admission is $7 at the door; performances are at 8 p.m. and 10 p.m. Call 990-1962 for more information.