By Denny Dyroff, Entertainment Editor, The Times The Turk’s Head Music Festival in West Chester (Everhart Park, Bradford Avenue and Everhart Street, West Chester, 610-436-9010, http://www.turksheadfestival.com) just keeps rocking on year-after-year — and just keeps getting better. This year, the annual Turks Head Music Festival will be held on September 19 from noon-8 p.m. in the park at the west...