| ID | Title  | Author | Language | Number of records | Number of melodies |
|---|---|---|---|---|---|
| 701 | O majestas deica | Anonymous | Latin | 0 | 0 |
| 96 | O Maria flos pudoris | Anonymous | Latin | 0 | 0 |
| 139 | O Maria Magdalena alleluia | Anonymous | Latin | 2 | 1 |
| 62 | O Maria mater Christi O Maria mater Cristi, Ave mater Christi | Záviš (Zawisse) | Latin | 7 | 2 |
| 70 | O Maria mater pia | Anonymous | Latin | 1 | 0 |
| 434 | O Maria matko božie O Maria matko bozye | Anonymous | Czech | 1 | 1 |
| 435 | O Maria matko milostivá O Maria mathko mylostywa | Anonymous | Czech | 1 | 1 |
| 316 | O Maria rubens rosa | Anonymous | Latin | 4 | 2 |
| 342 | O Maria via vitae O Maria via vitae | Anonymous | Latin | 0 | 0 |
| 763 | O Maria virgo pia | Anonymous | Latin | 0 | 0 |
| 910 | O mensch nu leid schmertzen Mensche nw leid smerczen | Anonymous | German | 1 | 1 |
| 721 | O mira caritas | Anonymous | Latin | 0 | 0 |
| 301 | O mirandum commercium | Anonymous | Latin | 0 | 0 |
| 123 | O princeps apostolice | Anonymous | Latin | 2 | 1 |
| 720 | O quam formosa | Anonymous | Latin | 0 | 0 |
| 200 | O quantum sollicitor | Anonymous | Latin | 1 | 1 |
| 97 | O regina lux divina o formosa | Anonymous | Latin | 0 | 1 |
| 140 | O regina lux divina pro me | Anonymous | Latin | 2 | 1 |
| 236 | O rex regum clementiae | Anonymous | Latin | 0 | 0 |
| 411 | O sacrata hostia | Jan Jenštejn | Latin | 0 | 0 |
