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Josephine Antoinette Estill (née Vadala; 25 April 1921 – 9 December 2010), known as "Jo Estill", was an American singer, singing voice specialist and voice researcher. Estill is best known for her research and the development of Estill Voice Training, a programme for developing vocal skills based on deconstructing the process of vocal production into control of specific structures in the vocal mechanism. ==Biography== Josephine Antoinette Vadala was born on 25 April 1921 in Donora, Pennsylvania, USA. She sang professionally on the radio in Pittsburgh from 1939–1940, and 1940–1947 in Hollywood. After marrying Thomas Estill of Colorado Springs, she toured Europe in 1953 with a lieder concert tour including programmes in The Hague, Amsterdam, Copenhagen, Oslo, London, Zurich, Geneva and Paris. Estill then had 13 years of performance as a soloist in Colorado Springs, Colorado, with the Air Force Academy Choral Concerts, Colorado Springs Symphony, Colorado Springs Opera as Dido, Sr. Angelica, Aida, Tosca, among others. In 1969, Estill received a BA in Liberal Arts from Colorado College, Colorado Springs, and in 1971, Estill received an MA in Music Education from Case Western Reserve University in Cleveland, Ohio. During her studies at Case Western Reserve University, Estill took 30 hours of speech and hearing elective classes, marking her introduction to voice science. From 1972–1979, Estill was appointed Instructor in Voice in the Department of Otolaryngology, at the Upstate Medical Center, Syracuse, New York. It was here that Estill worked under Dr. Ray Colton, and Dr. David Brewer, two of the top voice researchers in the United States and began her pioneering research on her ''six voice qualities'': speech, falsetto, sob, twang, opera, and belt. Colton, Brewer and Estill presented many papers on their research to the 'Care of the Professional Voice' conferences of the Voice Foundation. Between 1980 and 1984, Jo enrolled in the City University of New York PhD graduate programme in Speech and Hearing. She completed all of her PhD course work and withdrew without submitting her dissertation. Estill's interests and voice research led to the development of Estill Voice Training and in 1991 Estill founded the company 'Estill Voice Training Systems' to protect the work and begin uniform certification of instructors. On 10 September 2004, Estill was awarded an Honorary Doctorate, Doctor of Letters (LittD), from the University of East Anglia. Estill died in Santa Rosa, California on 9 December 2010 of natural causes. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jo Estill」の詳細全文を読む スポンサード リンク
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