Ann Mason is a noted jazz vocalist, known for her rich, distinctive contralto voice and emotive delivery. Coming into prominence during the 1970s, Mason's style is deeply rooted in traditional jazz, yet she has also incorporated elements of rhythm and blues and pop in her music. Her best-known work, the album "Heartstrings," is considered a classic in the jazz genre. Throughout her career, Mason has been recognized for her ability to convey deep emotional resonance in her performances, significantly influencing subsequent generations of jazz vocalists.