| [scheda guida] |
| Abaelardus, Petrus |
| Accursi, Michele |
| Acourt |
| Ad festas choreas celibes ex more venite vigines |
| Adam de Fulda |
| Adam de Fulda |
| Adam de Fulda |
| Adam de Saint-Victor |
| Adami, Giuseppe |
| Adami, Giuseppe |
| Adami, G. |
| Adami, Giuseppe |
| Adami, Giuseppe |
| Adamus, Victorinus |
| Adamus, Victorinus |
| Adriana |
| Africana (L') |
| Agnese |
| Agnese di Fitzhenry |
| Aida |
| Aida |
| Ajosa, Antonino |
| Album per piano forte |
| Alceste |
