[3] In 1801, he took part in the inauguration of Trieste's Regio Teatro Nuovo, performing two premières on 20 and 21 April: Antonio Salieri's Annibale in Capua (Scipione) and Simon Mayr's Ginevra di Scozia (Polinesso).
His career was very long, continuing into the early twenty years of the 19th century, with a repertoire based upon such composers as Paisiello, Mayr, Ferdinando Bertoni, Domenico Cimarosa, Pietro Alessandro Guglielmi, Giuseppe Sarti, Niccolò Antonio Zingarelli, and Francesco Bianchi.
Giacomo David represents the typical baritonal tenor of the late 18th century, gifted with remarkable voice volume, but not lacking in high-pitching capability, though singing sharp notes in falsettone.
[6] He had mastery of coloratura for which he was famous: "he was able to compete with the castratos in the florid music and far exceed them in his dramatic intensity",[7] and, by 1786 he was the first tenor in the history of Turin's Teatro Regio that was paid more than the primo uomo[8] during the carnival season.
[9] In fact, David's popularity was enormous and, along with his contemporaries, Matteo Babini and Giovanni Ansani, he contributed "[to lay] the foundation of the forthcoming myth of the tenor" which would be established during the Romantic era.