A / B / C / D / E / F / G / H / I / J / L / M / N / O / P / R / S / T / U / V / W
- O bread of heaven
- O Come, All Ye Faithful
- O Deus ego amo te
- O filii et filiæ
- O Lord I am Not Worthy
- O Mother of perpetual help
- On Eagle’s Wings
- O salutaris hostia
- O sanctissima
- O sodales
- O Antiphons