title: The male operatic head register versus falsetto.
mesh_terms: D000162:Acoustics; D006257:Head; D006801:Humans; D007828:Laryngoscopy; D007830:Larynx / Q000502:physiology*; D008297:Male; D009040:Motion Pictures; D009146:Music; D012123:Pulmonary Ventilation; D014831:Voice