Starting Sat., Jan. 13, partake of another MLK Day tradition: The 11th annual Let Freedom Sing Concerts, featuring the Heritage Gospel Chorale of Pittsburgh; community singers from throughout the region performing as the MLK Festival Choir; and dance troupes. Lynne Hayes-Freeland hosts the Jan. 13 show, at Ebenezer Baptist Church, in the Hill District, and the Jan. 15 reprise, at the Byham Theater.-Bill O’Driscoll