Keywords
- California--Berkeley3
- History3
- Italy3
- Manuscripts3
- Manuscripts, Medieval3
- Missals3
- Sermons3
- Sermons, Latin3
- Service books (Music)3
- Antiphonaries2
- Biographies2
- Christian saints2
- Commentaries2
- Eleventh century2
- Fasts and feasts--Catholic Church--Liturgy2
- Graduals (Chants)2
- Gregory I, Pope, approximately 540-6042
- Manuscripts, Arabic2
- Mass2
- Neumes2