Written in the late Renaissance period by Tomas Luis de Victoria this beautiful piece captures the wonder and mystique of Christ's birth. Russell Robinson has arranged “O Magnum Mysterium ” making it more accessibleto both school and church choirs by setting it in a slightly higher key than the original and with notation that is more easily understood. The music of the Renaissance has a pure clarity of sound that every singer shouldexperience. Capture the wonder of Christmas and the holidays with “O Magnum Mysterium.”