L'amant jaloux

L'amant jaloux, ou Les fausses apparences (The Jealous Lover, or False Appearances) is a French comédie mêlée d'ariettes in three acts by André Grétry first performed at Versailles on 20 November 1778. The libretto is by the Irish playwright Thomas Hales (also known by the French name Thomas d'Hèle) with the verse passages provided by F. Levasseur. It was based on the play The Wonder: A Woman Keeps a Secret (1714) by Susannah Centlivre.

The most famous arias in the opera include O douce nuit, the tenor serenade Tandis que tout sommeille (recorded by Roberto Alagna, amongst others) and the coloratura display piece Je romps la chaîne qui m'engage. The composer admitted the last named aria had no dramatic function, but he wanted to give his soprano star Marie-Jeanne Trial ("the finest voice ever formed by nature") "a chance to shine". The musicologist David Charlton claims Mozart and his librettist Lorenzo da Ponte knew Grétry's opera and were influenced by its ensembles when they wrote The Marriage of Figaro.

Bampton Classical Opera performed the opera in English in 2012. The role of Isabelle was sung by the Australian soprano Martene Grimson.

The opera was performed by The Pinchgut Opera in December 2015, in the City Recital Hall, Sydney.

The rich merchant Don Lopez does not want his young, widowed daughter Léonore to remarry. However, she is in love with the insanely jealous Don Alonze. Alonze's sister and Léonore's friend, Isabelle, is being pursued by her tutor who wants to marry her. The tutor is driven off by the French officer Florival and Isabelle takes refuge with Léonore. The jealous Alonze mistakes Isabelle her for a secret lover of Léonore (Isabelle is wearing a veil). Léonore is annoyed at the jealous Don Alonze. Florival arrives at the house in search of the mysterious stranger he has saved, with whom he is now in love. The housekeeper Jacinte tells him the house belongs to Léonore and he mistakenly assumes she is the woman he is after. Alonze overhears Florival singing a serenade (Tandis que tout sommeille) to "Léonore" and storms off in another jealous rage. Florival and Alonze confront each other in the garden at night. They are both relieved to find they are not rivals when Alonze finally recognises his sister. Alonze has just come into an inheritance which allows him to marry Léonore, and Florival marries Isabelle.

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