Enter a clue or pattern or both:
The Clue
Gregorian-chant opener (10 letter answer)
The Answer
INTONATION
Tags
Notes
The answer INTONATION is so rare that it appears less than once every 2500 puzzles.
Definition
INTONATION as a noun:
1. (intonation, modulation, pitch contour) = rise and fall of the voice pitch
2. singing by a soloist of the opening piece of plainsong
3. (intonation, chanting) = the act of singing in a monotonous tone
4. the production of musical tones (by voice or instrument); especially the exactitude of the pitch relations