Gustav Mahler’s Fourth Symphony is a masterpiece of joy and wonder and cnductor Manfred Honeck makes his triumphant return in a program of orchestral gems from his homeland of Austria. Ticket holders for Saturday, Dec. 13 may attend a free pre-concert chat with NWS Fellows and staff at 6:30 p.m. in the New World Center’s Truist Pavilion. No pre-concert chat will take place on Sunday, Dec. 14. That concert starts at 2 p.m.