tessiture
/ˌtɛsɪˈtʊreɪ/
noun
- The range within which most notes of a vocal part or musical instrument lie, especially in relation to comfort and quality of sound (plural of tessitura).
- The choir director studied the tessiture of each part to ensure balance.
- The composer adjusted the tessiture of the flute line to make it more playable.
- Different operatic roles have distinct tessiture that suit certain voice types.