O Magnum Mysterium, taken from the text of the Christmas Liturgy, is an appropriate way to wish ALL a happy holidays. This performance is with the combined tuba/euphonium/baritone sections of the Triangle Youth Brass Band and Triangle Youth Academy Brass Band (formerly Brass Ensemble). This was performed on a concert where we combined both bands to play movie music and we also had brass choir music (Trumpet Ensemble, Horn Choir, Trombone Choir, Tuba/Euph Ensemble and Percussion Ensemble). It was a fun concert. Most of the kids in this ensemble are my private students, so it was really fun for me to do this tune with them.