David Blair McClosky graduated from the New England Conservatory in Boston and had a career in opera and oratorio performance. He subsequently dedicated over 50 years to studying the complexities of the vocal instrument and the treatment of voice disorders in singers and speakers. In collaboration with eminent otolaryngologists at Syracuse University and the Massachusetts Eye and Ear Infirmary in Boston, Mr. McClosky developed techniques to resolve vocal problems without surgery. He was Clinical Voice Therapist at the Massachusetts Eye and Ear Infirmary and treated people from all over the United States and beyond. Mr. McClosky was Professor of Voice at Boston University and taught at the Boston Conservatory of Music. He lectured and presented papers at many prestigious universities and professional organizations throughout the United States and abroad. The techniques he pioneered in the 1950sbased on correct diaphragmatic breathing, relaxation of the extrinsic laryngeal musculature, and the proper use of the vocal folds to produce healthy phonationare now used worldwide by performing singers, speakers, and teachers to maintain healthy, resilient voices even under demanding conditions.