In "Il Trovatore" Verdi made another stride in advance. During the two years that passed between the production of "Rigoletto" and that of "Il Trovatore," a great change had taken place in his style. There is observable in the score of the later opera a larger variety in his harmonies, and the basses move more independently and more fluently. The accompaniments are less perfunctory, and are given a more artistic taste than that of merely emphasizing the rhythms in a conventional way. The instrumentation is richer, the parts often move more freely, and the general effect is more serious and impressive; while the varieties of tone-color are more affluent than in any of the composer's earlier scores. In other respects, notwithstanding the popularity of the opera, we do not think it is superior to "Rigoletto." On the contrary, it seems to us to lack something of the artistic dignity that pertains to its immediate predecessor. It is overfull of mere tune-making that does not fairly echo the dramatic sentiment of the situations on which it is expended. In "Rigoletto," Verdi seems to have escaped wholly from the influence of Donizetti. In "Il Trovatore" the methods of Donizetti are constantly recalled, and the opera seems cast in the same mould as "Lucrezia Borgia." The music given to Azucena, graceful and ear-pleasing as it is, for the most part appears trivial and frivolous when it is considered in relation to the passion it is intended to emphasize. Still, forty years after its birth it remains one of the most popular operas on the stage, even in Germany. "La Traviata" overflows with exquisite melodies, but here the composer has been more successful in wedding sound to sense. His theme was sentimental rather than dramatic, and the sensuous tunes harmonized well with the spirit of the text. Elegance, refinement and warmth of style characterize the score throughout, and the proprieties are not violated except in the vulgar air, _Di provenza_, the music of which, to say nothing of its reiteration of the same rhythmical phrase bar after bar, is ridiculously inappropriate to the sentiment of the situation. "Les Vêpres Sicilliennes" showed no further change in the composer's methods, and the same may be said of "Un ballo in Maschera," "La Forza del Destino" and "Don Carlos." There are fine dramatic and instrumental moments in all these works, but in none of them is there any advance beyond "Rigoletto." Moreover, there are many lapses back to the composer's "Ernani" period. He was not yet able or willing to break wholly with the past. It is true that he continued to give more and more care to those portions of his score that dealt with the action of the drama, instead of bestowing attention on the composition of catching melodies and _ensembles_, to the neglect of the intermediate parts. In his "Simon Boccanegra," however, which succeeded "Les Vêpres Sicilliennes," he gave the first impressive indication of