Freedom High School 50th Anniversary Alumni Concert; Saturday, April 22, 2017 at 7pm; Free to the public, Freedom High School Auditorium, 3149 Chester Avenue, Bethlehem PA 18020, 610-867-5843. The Alumni Concert features retired, former, and current vocal and instrumental directors who will be directing two ensembles, a band, and a chorus of former students. Come join us for a night celebrating 50 years of musical excellence!