O magnum mysterium (2-260)
O magnum mysterium (4-619)
O Night Divine (3-625)
O Night of Nights (5-351)
O Shining Star (5-861)
O Sing to the Child (2-986)
O Sleep Thou Heavenborn Treasure (1-625)
O, Come All Ye Faithful (3-462)
O, Come All Ye Faithful (4-961)
O, My Dear Heart, Young Jesus Sweet (1-228)
Of Course There Is a Santa Clause (1-858)
Oh Star of Bethlehem (0-044)
Oh, How Beautiful the Sky (3-205)
Oh, How Joyfully! (2-079)
On a Clear Winter's Evening (6-380)
On a Frosty Winter's Night (3-923)
On a Morn All Crisp and Cold (6-164)
On Christmas Day (3-008)
On Christmas Night (2-041)
On the Day Before Christmas (and the Day Before That!) (5-952)
On the Day that Christ was Born (4-898)
On the Mountainside (6-221)
On This Day Earth Shall Ring (6-059)
On This Happy Morn (1-671)
