http://youtu.be/LkE_vk86fq0?t=1h7m10s is the link to hear the BYU Singers perform it in concert!
The BYU Singers appear out of the crowd to sing O Sapientia in the BYU Library. For a brief minute, the library stood still! The audience was captivated, and asked for more. We told them that it sounds better live and invited them to our concert!