The manuscript is dated Pesaro, 8 March 1717. This is a composite work, being a collection of arias by various north Italian composers, interspersed with anonymous recitatives. The names of the composers and various alterations to the text have been added in a different hand, possibly that of G M Ruggieri, maestro di cappella at Pesaro. Fifteen of the arias are by Agostino Tinazzoli, otherwise known only by two small works in manuscript. Other composers named are Tommaso Albinoni, Floriano Aresti, Giovanni Bononcini, Calvi, Francesco Gasparini, Giovanni Battista(?) Mariani, Giacomo Antonio Perti, Luc-Antonio(?) Prediera, and Sabatini. The music for the Bononcini aria is that originally for 'E pur ver che a soffrir viene', from his opera 'II trionfo di Camilla', first produced in Rome in 1698.