'Le Nozze di Figaro' is one of the three 'da Ponte' opera's which Mozart composed on libretto's of Lorenzo da Ponte (1749-1838) the famous Viennese theaterdirector and courtpoet. The aria Non so più cosa son, cos faccio is sung by Cherubino in the first act of the Opera: After being dismissed from his position as the Count's page for being discovered alone with the gardener's daughter, Cherubino tells Susanna that, suddenly, every woman excites him to no end.