Do a key word search on google for “french cafe music.” You will find a lot of suggestions and a youtube clip of music. I hope you are planning to wear some sort of costume to complete your role. A beret and tied scarf on the harp could be fun, too. If this was my gig, I would also bring a small, stuffed-toy dog with a leash tied to my harp column or harp bench. The French love their dogs:) Let us know how the wedding turns out. Sounds like fun.
Julianna, a few years ago I was asked to play background music for a well known travel writer and speaker for his presentation on France. I compiled a list of pieces and arranged the keys so that they were mixed, using my own arrangements, so help yourself to this list, if you wish:
C: The River Seine. F: Plaisir D’Amour. Cm to CM: I Love Paris. G: Dominique. C: La Vie en Rose. Dm-DM: Les Bicyclettes de Belsize. C: J’Attendrai. G: Parlez-Moi d’Amour. C: Pigalle. DM7-EM7: A Man and a Woman. em: Domino. C: Aupres de ma Blonde. Eb: Moulin Rouge. C: Symphonie. Dm_DM: Forbidden Games. C: Mamselle. D-G-D: La Ronde. C: Hi Lili,Hi Lo. F: Beyond The Sea. C or Ab: If You Love Me, Truly Love Me. Dm-M: Love is Blue. C: Rondeau by Mouret. Am: Charade. C: Gigi.F: Alouette. C: Au Clair de la Lune. F: Frere Jacques. C: April in Paris. Eb: The Poor People of Paris. C: The Petite Waltz. C: Ebb Tide. F: Under the Bridges of Paris. Fm: Under Paris Skies.C: All I Ask of You.