| Database | Chant count |
|---|---|
| Usuarium https://usuarium.elte.hu |
7 |
| Medieval Music Manuscripts Online https://musmed.eu |
2 |
| Portuguese Early Music Database https://pemdatabase.eu |
1 |
| Siglum | Folio | Seq | Incipit | Feast | Office | Genre | Position | Mode | Image | DB |
|---|---|---|---|---|---|---|---|---|---|---|
| -, 122/53 | 472 | O quam clarus | MASS | Al | Image | USU | ||||
| E-COR, X VI | 610 | O quam clarus | MASS | Al | Image | USU | ||||
| E-Mn, INC/1044 | 497 | O quam clarus | MASS | Al | Image | USU | ||||
| E-Mn, R/02915 | 500 | O quam clarus | MASS | Al | Image | USU | ||||
| E-Mn, R/08018 | 642 | O quam clarus | MASS | Al | Image | USU | ||||
| E-SAu (Salamanca) Universidad, Archivo y Biblioteca Ms 2637 | 226r | Alleluia O quam clarus est sidereus | Omnium Sanctorum | MI | Al | 1 | Image | PEM | ||
| F-BO, T 539 Rés. | 343 | O quam clarus | MASS | Al | Image | USU | ||||
| F-Pn : Lat. 1135 | 133v | 1 | Alleluia O quam clarus est sidereus | Omnium Sanctorum | MASS | Al | Image | MMMO | ||
| GB-Lbl : Harley 4951 | 289r | 11 | Alleluia O quam clarus est sidereus | Omnium Sanctorum | Al | Image | MMMO | |||
| US-CAh, Typ 560.15.262 | 471 | O quam clarus | MASS | Al | Image | USU | ||||
