society > leisure > the arts > music > performing music > singing > [noun] > modulation of voice (3)
The setting or determination of pitch in singing; the exercising of the voice in the correct pitch of the notes of the scale. Obsolete.
Modulation of the voice; in speaking or singing: a change in the pitch or tone of the voice.
Music. port of the voice n. (skill or ability in) vocal modulation. Obsolete. rare.