Tomatis Was One of the Earliest Pioneers in the Field Now Known As Psychoacoustics, and His Book L'oreille Et La Voix is Considered a Classic by Many in That Field. Although Tomatis Initially Applied His Theories to Vocal Performance, It Soon Became Clear That the Principles He Uncovered Could Also Have a Profoundly Beneficial Influence on Actors, Painters, Writers, and Those Suffering From Physical and Psychological Disabilities. This Translation Makes Tomatis's Discoveries Accessible for a Broad Audience, and is Divided Into Three Parts That Can Be Read Separately or Together. Part I Introduces Tomatis's General Concepts As They Apply to the Art of Singing. Part Ii is a Basic Introduction to the Anatomy of the Ear and How Its Functions Relate to the Brain and the Rest of the Body. It Also Provides the Reader With a Metaphor-Free Vocabulary for Discussing Anatomy With Doctors and Other Concerned Professionals. Part Iii Gives Practical Advice on Singing, Posture, and Matters Pertaining