| Acknowledgments | |
| Abbreviations | |
| Ch. 1 | From Gregory to the Ottonians | 3 |
| Ch. 2 | A Gregorian Processional Antiphon | 19 |
| Ch. 3 | Toledo, Rome, and the Legacy of Gaul | 31 |
| Ch. 4 | Charlemagne's Archetype of Gregorian Chant | 82 |
| Ch. 5 | On the Origin of Neumes | 109 |
| Ch. 6 | On Gregorian Orality | 141 |
| Ch. 7 | Abbot Helisachar's Antiphoner | 178 |
| Ch. 8 | Aurelian's Use of Neumes | 187 |
| Ch. 9 | Plainchant before Neumes | 195 |
| Ch. 10 | A Carolingian Visual Model | 214 |
| Ch. 11 | Memory, Neumes, and Square Notations | 253 |
| Index | 267 |