male il bene), and had abandoned the ground bass and the binary form air in two stanzas in favour of the ternary form or da capo type of air. His best operas of this period are La Rosaura (1690, printed by the Gesellschaft für Musikforschung), and Pirro e Demetrio (1694), in which occur the arias "Le Violette", and "Ben ti sta, traditor". From about 1697 onwards (La caduta del Decemviri), influenced partly perhaps by the style of Giovanni Bononcini and probably more by the taste of the viceregal court, his opera arias become more conventional and commonplace in rhythm, while his scoring is hasty and crude, yet not without brilliance (L'Eraclea, 1700), the oboes and trumpets being frequently used, and the violins often playing in unison. The operas composed for Ferdinando de' Medici are lost; they might have given a more favourable idea of his style as his correspondence with the prince shows that they were composed with a very sincere sense of inspiration. Mitridate Eupatore, accounted his masterpiece, composed for Venice in 1707, contains music far in advance of anything that Scarlatti had written for Naples, both in technique and in intellectual power. The later Neapolitan operas (L'amor volubile e tiranno 1709; La principessa fedele 1710; Tigrane, 1714, &c.) are showy and effective rather than profoundly emotional; the instrumentation marks a great advance on previous work, since the main duty of accompanying the voice is thrown upon the string quartet, the harpsichord being reserved exclusively for the noisy instrumental ritornelli. In his opera Teodora (1697) he originated the use of the orchestral ritornello. His last group of operas, composed for Rome, exhibit a deeper poetic feeling, a broad and dignified style of melody, a strong dramatic sense, especially in accompanied recitatives, a device which he himself had been the first to use as early as 1686 (Olimpia vendicata) and a much more modern style of orchestration, the horns appearing for the first time, and being treated with striking effect. Besides the operas, oratorios (Agar et Ismaele esiliati, 1684; La Maddalena, 1685; La Giuditta, 1693; Humanita e Lucifero, 1704; Christmas Oratorio, c. 1705; Cain, 1707; S. Filippo Neri, 1714; and others) and serenatas, which all exhibit a similar style, Scarlatti composed upwards of five hundred chamber-cantatas for solo voice. These represent the most intellectual type of chamber-music of their period, and it is to be regretted that they have remained