Legendary Philly rockers return, Sat.; Crenshaw at Kennett Flash, Fri. By Denny Dyroff, Correspondent, The Times Arlyn Wolters of Johnny’s Dance Band, the Philly legends who play Saturday night at Steel City Coffeehouse, in Phoenixville. She is equally at home with intense blues or humorous satire. Photo: Frank Jacobs. This weekend, there will be two local concerts featuring acts that have...