Musical performances, interviews, and historical footage celebrate the 100th anniversary of Boston's Symphony Hall, considered one of the three best concert halls in the world acoustically. Music Director Seiji Ozawa and the Boston Symphony Orchestra; Laureate Conductor John Williams, Conductor Keith Lockhart, and the Boston Pops Orchestra; and host Diana Rigg are joined by guest artists from stage, screen, and television, including Yo-Yo Ma, the Tanglewood Festival Chorus, the Boys Choir of Harlem, James Taylor, the Chieftains, Mandy Patinkin, Gil Shaham, Gregory Turay, and Cynthia Haymon.