"Beau soir" (French for Beautiful Evening, or Evening Fair), L. 84, is a French art song written by Claude Debussy, first published in 1891. It is a setting of a poem by Paul Bourget.
Lorsque au soleil couchant les rivières sont roses
Et qu'un tiède frisson court sur les champs de blé,
Un conseil d'être heureux semble sortir des choses
Et monter vers le cœur troublé.
Un conseil de goûter le charme d'être au monde
Cependant qu'on est jeune et que le soir est beau,
Car nous nous en allons, comme s'en va cette onde :
Elle à la mer, nous au tombeau.
"Beau soir" ("Beautiful Evening") is set to a poem by Paul Bourget. The poem paints the picture of a beautiful evening where the rivers are turned rose-colored by the sunset and the wheat fields are moved by a warm breeze. Debussy uses a gently flowing triplet rhythm in the accompaniment, which contrasts the duplets that drive the light melody. The piano and voice partner to create the sensation of peace that one might feel in the evening in nature, fitting the post-Romantic style. As any evening fades, however, so does the mood of the piece, and the song modulates from E major to F♯ minor. The piece reaches its climax when the melody reaches a high F♯, paired with the word "beau",[1] about two-thirds through the piece, before entering its modulated conclusion.
