By Denny Dyroff, Entertainment Editor, The Times There are not many bands that can go out on a 50th anniversary tour – and there are not many bands like The Residents. On March 31, The Residents headline a show at the Foundry at Fillmore Philadelphia (1100 Canal Street, Philadelphia, 215-309-0150, www.thefillmorephilly.com) as part of their … Continue reading On Stage: Entertaining, but always a mystery — The Residents