Which feature is characteristic of Sarah Vaughan’s singing?

Sarah Vaughan is renowned for her extraordinary vocal abilities, particularly her extreme range, which encompasses several octaves. This distinctive feature not only allows her to reach both high and low notes with ease but also enables her to explore different emotional depths and tonal colors in her performances. Her ability to soar to soprano heights while also possessing a rich, deep lower register sets her apart from many other vocalists.

Vaughan's singing style demonstrates remarkable flexibility and technique, characterized by her use of vibrato and dynamic control, which further enhances her extreme ranges. This capacity for expressive and powerful singing is a defining characteristic of her artistry that has influenced countless musicians and vocalists in the jazz genre and beyond.