Lucrezia ajugari
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La soprane Lucrezia Ajugari, contemporaine de Mozart, aurait (selon Mozart) atteint le Do altissimo (une octave au dessus du Do Alto) à l'Opera Ducal de Parma le 24 mars de 1771
source : http://www.orfeoed.com/responde_fich.asp?secc=3&id_d=88
voir aussi Le meilleur des mondes d'Aldous Huxley chap XI : " it effortlessly passed from Gaspard's Forster's low record on the very frontiers of musical tone to a trilled bat-note high above the highest C to which (in 1770, at the Ducal opera of Parma, and to the astonishment of Mozart) Lucrezia Ajugari, alone of all the singers in history, once piercingly gave utterance. "