Epstein, Helado Negro and Julianna Barwick — three artists on Sufjan Stevens’ Asthmatic Kitty label — are part of a multimedia show. “We All Owe” happens at 7:30 p.m. Thursday, April 8 at 21c (700 W. Main St., 217-6341). Films by Jonathan Dueck, who’s shot video for My Brightest Diamond, Half-Handed Cloud and Rafter, will […]