Archives are the current holding institutions of sources.
| Archivio Musicale di S Petronio (I-Bsp) |
| Biblioteca Comunale dell'Archiginnasio (I-Bca) |
| Biblioteca Universitaria (I-Bu) |
| Museo Internazionale e Biblioteca della Musica di Bologna (I-Bc) |
Organizations are corporate entities that have been involved in the history of a source, typically as an owner, creator, or seller.
| Bagarotti family |
| Biblioteca dei Canonici Regolari di San Salvatore, |
| Bologna University Library |
| Church of San Petronio |
| Monastery of San Domenico |
| Monastery of San Salvatore |
| Spanish College |
Sources that have had their origins in this city.