Catherine Anahid Berberian (Attleboro, Massachusetts, July 4 1925 - Rome, Italy, March 6 1983) was a composer, mezzo-soprano singer, and vocalist. From 1950 to 1966 she was married to composer Luciano Berio, who deconstructed her voice in "Thema (Omaggio a Joyce)" (1958) and wrote his "Circles" (1960) and "Recital I (for Cathy)" (1972) for her. In addition Sylvano Bussotti, John Cage, Hans Werner Henze and Igor Stravinsky wrote works for her voice. Wikipedia
Absolutely nothing could have prepared me for my meeting with Cathy Berberian, or the effect that this musical enchantress would have upon my own music making and musical awareness. www.mvdaily.com/articles/2002/03/cathy1.htm
The Official Cathy Berberian website. News, music, and information about one of the world's most celebrated avant-guarde singers. www.cathyberberian.com/
The definitive Wikipedia entry for Cathy Berberian. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Cathy_Berberian