List of operas by Handel

George Frideric Handel's operas comprise 42 musical dramas that were written between 1705 and 1741 in various genres. He began composing operas in Germany and then for a brief time in Italy to modest success. It was not until he moved to England that he found great success in the genre. His first opera in England, Rinaldo (1711), was met with enthusiasm, and several more Italian operas soon followed. However, Handel's place as the central figure of opera in England during the eighteenth century was not solidified until, under the influence of Thomas Arne, he began composing large-scale works with English language texts. Though almost all his English language works are technically oratorios and not operas, several of them, such as Semele (1743), have become an important part of the opera repertoire. Handel's first opera (opera seria - serious Italian opera) was Almira (1705).

During the 36 years in which Italian opera was his principal concern, Handel adhered closely to the typical form of the era, determined by the precedence given to solo singing and to stage presentation in which set changes were made in front of the audience and the curtain not lowered until the work's conclusion. Recitatives preceded solo arias, usually in da capo form (though frequently with an abridged return to the chief section), dominate the operas, and scenes are normally devised to start with several characters on stage, each of whom sings an aria and then exits. The last scene typically concludes with a coro sung by the soloists; ensembles are otherwise atypical and mainly limited to scenes of communal celebration; only "Dall’orror" in Act 3 of Alcina (1735) reaches the depth of the choruses in the English choral works. Handel’s operas therefore seem to be highly similar to those of his contemporaries; what makes them unique is the brilliance of the music which skilfully conveys with instant fervor the emotional states of the characters within the context of the drama.

Handel's earlier operas tended to be of a lighter nature, although there are intermittent moments, such as the prison scene from Almira (1705), which are highly dramatic. Handel's music for his first operas in England was often derived from musical ideas and idioms found in his cantatas and other works written during his time spent in Italy (1706–09). For example, the characteristic harmonic structure of Agrippina (1709) is obviously a retention of material from this Italian period. In general, the orchestrations of Handel's earlier operas tended to be richer and smoother than in his later works, utilizing additional instruments like bassoons to achieve different tone colours. The music for Rinaldo (1711) notably used four trumpets, an instrumental choice that Handel never repeated elsewhere.

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