TECHNIQUES FOR ENHANCING THE QUALITY OF SOUND ATTACK AND HARSHNESS IN A PROFESSIONAL SINGER’S VOICE. American Journal of Technology and Applied Sciences, [S. l.], v. 27, p. 19–22, 2024. Disponível em: https://americanjournal.org/index.php/ajtas/article/view/2302. Acesso em: 1 may. 2026.