Incoming Resources
- The lucky ones, Pentatonix
- PTX, Pentatonix, v. IV, Classics
- Pentatonix
- The state of music & other writings, Virgil Thomson ; Tim Page, editor
- Christmas is here!, Pentatonix
- The Norton anthology of Western music, edited by Claude V. Palisca, v. 2
- Norton anthology of Western music, edited by Claude V. Palisca, v. 1