The 36th annual concert celebrating Dr. Martin Luther King finds the celebrating the spirit of Dr. King’s "life, leadership, and vision in music, song, and community recognition." The concert begins at 7 tonight at Severance Hall. It's a free performance but tickets are sold out. The concert will be broadcast live on radio stations WCLV (104.9 FM) and WCPN (90.3 FM). (Niesel)