| Oratio |  |
Mittelalter
Choral
|
| Oratio - Benedictio | |
Mittelalter
Choral
|
| Oratio - Benedicto - Benedicamus Domino, in mode 1 | |
Mittelalter
Choral
|
| Oratio fidelium | |
Mittelalter
Choral
|
| Oratio Ieremiae | |
Mittelalter
Choral
|
| Oratio mea, offertory | |
Mittelalter
Choral
|
| Oratio Secreta / Praefatio | |
Mittelalter
Choral
|
| Oratio super Oblata | |
Mittelalter
Choral
|
| Oratio super oblata - Praefatio - Sanctus I in mode 4 | |
Mittelalter
Choral
|
| Oratio, in honor of Our Lady | |
Mittelalter
Choral
|
| Oratoire de l'ancien testament (Elegies For Kings and Princes/The Wedding At Cana) | |
Mittelalter
Choral
|
| Oratorio super oblata | |
Mittelalter
Choral
|
| Oravi Deum, offertory in mode 4 | |
Mittelalter
Choral
|
| Orbis Factor, Kyrie XI in mode 1 | |
Mittelalter
Choral
|
| Ordinarium for Marienfeste | |
Choral
|
| Ordinarium Missae | |
Mittelalter
Choral
|
| Oremus ad crucem, antiphona | |
Mittelalter
Choral
|
| Oremus pro Pontifice | |
Mittelalter
Choral
|
| Oremus, prayer text from Pope St. Gregory | |
Mittelalter
Choral
|
| Oremus. Sacrificia, Domine, oratio super oblata | |
Mittelalter
Vocal Music
|
| Orietur sicut sol Salvator mundi | |
Mittelalter
Choral
|
| Ortu solis, tractus in mode 8 | |
Mittelalter
Choral
|
| Os iusti Meditabitur Sapientiam | |
Mittelalter
Choral
|
| Os iusti, gradual in mode 1 | |
Mittelalter
Choral
|
| Os iusti, introit for St. Felix | |
Mittelalter
Choral
|
