Cathedral of the Blessed Sacrament - Sacramento, California

Imagine my delight when I stumbled across this:

Throughout the year, the Cathedral Choir sings the Introit and Communion Antiphon from the Graduale Romanum.
During Advent and Lent, the Choir also sings the Gradual and Offertory from the Graduale Romanum.

Repertoire list at the choir's site