is so exact that it is easy to imagine that that instrument, served as Domenichino’s model. In the first half of the sixteenth century, the tentative efforts made by such men as Galilei, Cavalieri, and Peri towards the composition of music of a more dramatic character than that which surrounded them at that time, resulted in a higher status for the viola da gamba, and later, for the violoncello. For the latter it was a waiting game, but “_tout vient à celui qui sait attendre_.” One result of the general agitation among musical circles was the appearance of a notable book on the art of playing viols by Silvestro Ganassi del Fontego. This interesting work, entitled “Regola Rubertina,” was published in Venice in 1542, and was exclusively devoted to the art of fingering and tuning treble and bass viols. A most important fact is to be learnt from the inscription on the title-page, which states among other particulars that the book is suitable for those who play the viol _without frets_--evidently the beginning of a surer technique. Perhaps nowhere in Italy was the dominant idea of restoring the learning of the ancient classics more deeply and fittingly rooted than in the birthplace of the greatest mediæval poet--Dante. In beautiful Florence there were _coteries_ composed of the most prominent men of the day who found a common cause in their zeal for the revival of the culture and polish of former ages. The house of Giovanni Bardi, Count of Verino, was more especially a meeting-place for the restless spirits of the day. Among the company who there assembled frequently was Vincenzio Galilei--the father of the astronomer--Jacopo Corsi, Ottavino Rinuccini, Strozzi, Jacopo Peri, and Emilio Cavalieri. To Peri is accorded the honour of writing the first opera, and to Cavalieri the first oratorio--two mighty steps these towards the emancipation of musical instruments, for both these forms of composition gave birth to the orchestra. Bent upon freeing music from the severe canonical style to which the Church confined it, Galilei made an attempt by writing a species of Cantata--_Il Conte Ugolino_--which he himself sang sweetly to the accompaniment of a bass-viol before the Bardi dilettanti.[17] After this effort, Emilio Cavalieri, a Roman gentleman of good family, and another devoted member of the Bardi _coterie_, wrote the important _La Rappresentazione di Anima e di Corpo_, wherein he brought about a more equal unison of voice, poetry, and instruments. This composition was performed at the Church of Valicella, in Rome, and the orchestra consisted of a Harpsichord, a double Guitar, two Flutes, and a Basso Viola da Gamba (double bass-viol). No separate parts were given to the performers, so doubtless they were left to work out their way through the maze of figures and signs which graced the Harpsichord part. These two experiments led to others of a similar kind. Then Jacopo Peri, another of the Bardi faction, who moved in the highest circles of