High-voice Gregorian Chant

This video, which was just now uploaded from last year's Sacred Music Colloquium, presents an organ prelude, and, if I'm not mistaken, this seems like Michael Lawrence playing. It is followed by the Introit sung by high voices for the Feast of Saints John Fisher and Thomas More, Martyrs: Multae tribulationes.

Now, keep in mind that most of these singers had never sung chant before this one workshop. And listen to the amazing results! This is after only a few rehearsals. Here is an example of one treasure among so many that await those embrace the beauty and dignity of Catholic sacred music.