There are three groups of voice types for women: soprano (soprano 1), mezzo-soprano (soprano 2), and contralto (Alto). Soprano The soprano is the highest singing voice . Sopranos are broken down into sub-groups, depending on vocal color or timbre, the weight of voice, and skill of the voice. Who are some famous sopranos? Sarah Brightman Kate Bush Anna Netrebko Joan Sutherland Mezzo-Soprano The mezzo-soprano is the middle-range voice type for females. The mezzo-soprano voice type is generally divided into the coloratura, lyric, and dramatic mezzo-soprano. Mezzo-sopranos generally have a heavier, darker tone than sopranos. Who are some famous mezzo sopranos? Cecilia Bartoli Idina Menzel Whitney Houston Sarah Connolly Contralto The contralto voice (also known as alto) is the lowest female voice. A true operatic contralto is rare. Who are some famous contraltos? Cher Toni Braxton Sade Annie Lennox Kathleen Ferrier Eula Beal