O Music (4-587)
O Music (4-638)
O Nata Lux, Light Born of Light (5-926)
O Night Divine (3-625)
O Night of Nights (5-351)
O No, John (0-413)
O Praise the Lord (0-618)
O Praise the Lord with Heart and Voice (5-704)
O Praise the Lord, All Ye Nations (1-229)
O Praise the Name of Christ, the Lord (1-670)
O Praise Ye the Lord (3-491)
O quam gloriosum (0-416)
O Rest in the Lord (1-849)
O Rest in the Lord (2-168)
O Rest in the Lord (2-322)
O Sacred Feast (5-565)
O Sacred Head (2-740)
O Sacred Head, Now Wounded (5-966)
O sacrum convivium (5-461)
O sacrum convivium (6-030)
O Saviour Sweet (2-321)
O Saviour Sweet (5-953)
O Saviour, Hear Me (0-750)
O Saviour, Prescious Saviour (6-155)
