Scarlatti, the founder of the great Neapolitan school, studied at Rome under Carrissimi; and he is memorable in musical history as having given new development to the operatic air, while he introduced for the first time measured recitative. Of Scarlatti's immediate followers, Logroscino and Durante, the former introduced concerted pieces and the dramatic finale which afterwards received new development at the hands of Piccinni. This important feature to which modern opera owes so much of its importance and so much of its effect, was introduced into serious opera by Paisiello. Paisiello, like Scarlatti, Logroscino and Durante, was professor at the Conservatorio of Naples; and under his guidance were formed Jomelli, Piccinni, Sacchini, Guglielmi, and Cimarosa. The particular innovations due to Piccinni and Paisiello have already been mentioned. Cimarosa composed the best overtures which, up to his time, the Italian school could boast of, and he was the first to introduce quartets and other concerted pieces in the midst of dramatic action; not, that is to say, as ornaments at the end of an act, which hitherto had been the place conventionally assigned to them, but as integral parts of the musical drama. This innovation occurs for the first time in _Il Fanatico per gli antichi Romani_, which Cimarosa composed in 1773. It was not until nineteen years afterwards that this master produced his _Matrimonio Segreto_. But meanwhile Cimarosa had been completely distanced by Mozart, who, himself a great inventor, and, so to say, anticipator, adopted moreover everything that was worth adopting in the methods of all his contemporaries and predecessors. To resume, in as few words as possible, the history of opera in Italy up to the time of Rossini, this form of art was at first nothing but recitative, or recitative with a chorus at the end of each act. Then occasional airs were introduced, then duets; and it is not until the middle of the eighteenth century that we find an example of an operatic trio. Quartets and dramatic finales followed in due course; and while the Italians had been developing new methods of employing the solo voices, Gluck had given prominence to the chorus as a dramatic factor, and had cultivated choral writing with the happiest effect. Other Germans, with Haydn foremost among them, had produced new orchestral combinations, until at last Mozart joined to the vocal forms of the Italians the instrumental forms of the Germans, while developing and perfecting both. Rossini introduced quite gradually into Italian opera those reforms which are particularly associated with his name; and perhaps in no other way could he have got them accepted. But he might, had he felt so disposed, have borrowed them one and all in a piece from the works of Mozart.