The Singing Voice Appreciation Scale (Escala de aprecia o da voz cantada, EAVOCZ) is a pioneering and innovative instrument, that aims to quantify and qualify the adult singing voice and to standardize the nomenclature among singing teachers, singers, voice coaches, singers, speech-language pathologists, ENTs, voice professionals and general public. Terminology has been defined in three scientific axes: audio-perceptual, acoustic and physiological,...