Guest conductor Robert Boardman, a specialist in composer Howard Shore, leads the A2SO in a performance of Shore’s sweeping scores to the Lord of the Rings film trilogy, a musical interpretation of J.R.R. Tolkien’s Middle-earth. With guest mezzo-soprano Kaitlyn Lusk and the U-M Men’s and Women’s Glee Clubs. Note that this performance does not include film projections. 7:30 p.m., Hill Auditorium. Tickets $30–$65 (kids & students, $15–$33) in advance only at a2so.com. (734) 994–4801.