Sarah Vaughan ranks among jazz's most influential vocalists, known for her four-octave range, impeccable intonation, and ability to reharmonize melodies with the sophistication of an instrumentalist. Her career spanned from the 1940s through the 1990s, during which she recorded standards, bebop, and contemporary material with equal mastery, earning her the nickname "The Divine One." In the classroom and rehearsal room, her interpretations serve as masterclasses in phrasing, swing articulation, and the art of making a lyric breathe.