O Mortal Man
O Praise The Lord, All Ye Nations
O Praise Ye the Lord
O Quam Tristis Et Afflicta
O Rest in the Lord
O Salutaris
O Savior of the World
O Saviour, Hear Me!
O Sifuni Mungu
O Sing a New Song
O Sing Joyfully
O Sing Unto the Lord
O Sons and Daughters
O Vos Omnes
O Wake and Sing, Good Christians
O Worship the King
Ode For Children's Day
Of the Father's Love Begotten
Oh Come, Emmanuel
On the Cross Have Mercy
On The Very First Christmas Morning
Open the Gates of the Temple
Open Thou My Lips
Panis Angelicus
Peace Today Descends From Heaven
Peace, Peace
Peaceful Alleluia, A
People Need the Lord
Pie Jesu
