Orfeo ed Euridice
A prolific writer of church music, Bertoni also composed 70 operas which fell into oblivion, except "Orfeo" (Venice, Teatro San Benedetto, 1776), based on the same libretto by Ranieri de' Calzabigi for the work of Christoph Willibald Gluck, "Orfeo ed Euridice" (Burgtheater, Vienna, 1762). Bertoni composed this work especially for his friend Gaetano Guadagni, a castrato, who would interpret the role of Orfeo (the same role he had interpreted in Gluck’s Orfeo ed Euridice). Bertoni generally ignored Gluck's reforms and composed the work in the old style of opera seria.