| Answer | Crossword Clue |
|---|---|
| INTONATION | Gregorian-chant opener |
| PLAINSONG | Gregorian chant |
| PLAINSONG | Gregorian chant. |
| INTONE | Perform Gregorian chant |
| NTNTD | Performed Gregorian chant |
| NEUME | Gregorian chant note |
| NEUME | Gregorian-chant symbol |
| INTONE | Perform a Gregorian chant |
| INTONE | Sing, as a Gregorian chant |
| INTONATION | Opening phrase of a Gregorian chant. |
