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Volume 1
| 1 | Tridium Sacra | The Gregorians | 8:32 |
| 2 | Dreaming | The Gregorians | 6:11 |
| 3 | Ad Matutinum I | The Gregorians | 9:33 |
| 4 | Tridium Sacrum | The Gregorians | 7:10 |
| 5 | Return to the Past | The Gregorians | 6:32 |
| 6 | Pulse Ocean Space | The Gregorians | 3:17 |
| 7 | Meditazione | The Gregorians | 4:03 |
| 8 | Ad Matutinum II | The Gregorians | 4:41 |
| 9 | Eden | The Gregorians | 4:39 |
| 10 | Ad Matutinum (remix) | The Gregorians | 9:42 |
| 11 | Dreaming (instrumental mix) | The Gregorians | 7:34 |
Volume 2
| 1 | La Gloria | The Gregorians | 4:41 |
| 2 | L'Universo | The Gregorians | 5:08 |
| 3 | La Davina Potestate | The Gregorians | 3:19 |
| 4 | Lamento | The Gregorians | 4:12 |
| 5 | Peace on Earth | The Gregorians | 4:16 |
| 6 | Purgatorio | The Gregorians | 4:43 |
| 7 | Paradize Lost | The Gregorians | 5:02 |
| 8 | Apocalypse I | The Gregorians | 3:52 |
| 9 | Libera Me | The Gregorians | 4:23 |
| 10 | Love Is... | The Gregorians | 4:35 |
| 11 | Libera Me (remix) | The Gregorians | 4:51 |
Volume 3
| 1 | Intro | The Gregorians | 5:47 |
| 2 | Meditazione II | The Gregorians | 5:27 |
| 3 | Silentium | The Gregorians | 5:40 |
| 4 | Spiritus Sanctus | The Gregorians | 5:38 |
| 5 | Agnus Dei | The Gregorians | 5:30 |
| 6 | Officium | The Gregorians | 5:23 |
| 7 | Alleluia (remix) | The Gregorians | 5:15 |
| 8 | Libera Me | The Gregorians | 5:32 |
| 9 | Gregoriana | The Gregorians | 5:44 |
| 10 | Tridium Sacrum (remix) | The Gregorians | 5:29 |