not necessarily French. For example, Tchaikovsky's String Quartet II in D Major in Russia is the most beautiful classical music known in the world. Mendelssohn's violin concerto in E minor is slightly sad but more romantic. To mention this first violin concerto, I have to mention bruch's Violin Concerto No.1 in G minor. Words of nobility "Dance of Polonaise" by Tchaikovsky Yevgeny onegin is the most noble dance music I have ever seen. Finally, it is recommended that Handel's "Water Music" is cheerful and romantic music. I think these songs are ok. I continue to recommend them.

French composers are as follows

Debussy's girl with flaxen moonlight hair (Debussy's works and her appreciation, these two are the best)

Berlioz symphonie fantastique's first and second movement fantasy capriccio

Ravel's peacock dance music for the dead princess (Sharon's famous song is slightly sad)

Bicai Flower Song

Saint-Sang Swan Introductory and Circling Capriccio and Tower. If you want simple and cheerful advice, Mozart is better, or simply waltz from the Strauss family.