 Rousseau was a successful composer of music, who wrote seven operas as well as music in other forms, and made contributions to music as a theorist.As a composer, his music was a blend of the late Baroque style and the emergent Classical fashion, and he belongs to the same generation of transitional composers as Christoph Willibald Gluck and C. P. E. Bach.One of his more well-known works is the one-act opera "The Village Soothsayer", containing the duet ""Non, Colette n'est point trompeuse"" which was later rearranged as a standalone song by Beethoven.