Anyone who’s been enveloped in the velvety vocal phrasing of jazz legend Ella Fitzgerald, the operatic oscillations of “King of the High C’s” Luciano Pavarotti, or the melismatic melodies of Mariah ...

Vibrato is a small variation of pitch occurring spontaneously that results from the free oscillation of the vocal cords. A singer achieves a healthy vibrato by allowing for an open pharynx (open ...