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Joan Linda Lotz La Barbara is an American vocalist and composer known for her explorations of non-conventional or "extended" vocal techniques. Considered to be a vocal virtuoso in the field of contemporary music, she is credited with advancing a new vocabulary of vocal sounds including trills, whispers, cries, sighs, inhaled tones, and multiphonics. From Wikipedia (https://en.wikipedia.org/wiki/Joan_La...) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/b...)