The Choral Union performs a wide variety of music. In past years the choir has presented master works such as: Bach's Cantata No. 79, Handel's Messiah, Vivaldi's Gloria, John Rutter's Gloria, Requiem and Te Deum, Vaughn William's Hodie (selections), Dubois' Seven Last Words of Christ, Pergolesi's Magnificat, Britten's Ceremony of Carols, Pinkham's Christmas Oratorio, Menotti's Amahl and the Night Visitors and others.

The Choral Union has also presented Broadway musicals such as Clark Gesner's You're a Good Man, Charlie Brown and Rogers and Hammerstein's The Sound of Music.