Héléna (opera) Héléna (opera) Héléna is an opera in three acts by the French composer Étienne Méhul. It premiered at the Opéra-Comique, Paris on 1 March 1803. The libretto is by Jean-Nicolas Bouilly. It enjoyed 36 performances in the space of 20 months before disappearing from the theatre's repertoire. Bouilly was accused of basing the plot too closely on Cherubini's "Les deux journées". According to the musicologist Elizabeth Bartlet, "several scholars have pointed out [that] Beethoven's trumpet call in "Fidelio" was inspired by Méhul's "Héléna"". Constantin, Count of Arles, has been accused of killing his father. He flees with his wife Héléna
L'écume des jours (opera) Days") for soprano, mezzo-soprano, tenor, chorus and orchestra (1981) 36' Text by Boris Vian (French) Sources L'écume des jours (opera) L'écume des jours (English: "The Foam of Days") is an opera in three acts (14 scenes) by the Russian composer Edison Denisov. The French (also German and Russian) text is by the composer based on the novel of the same title by Boris Vian. It was composed in 1981. The idea of this opera came to Denisov in the beginning of the 1970s and he worked on it up until 1981. In the libretto, written in French, Denisov not only