Bonjour,

Here are one or two links were you can find tunes. Southern French music may be quite different depending on the area. The first one will bring you tunes from Nice area (mostly played with a 'galoubet' which is a three hole pipe), next one brings tunes from many area in France (Massif Central, Brittany, South west like Aquitaine) in ABC format. You may find (not so traditional) tunes from Normandy, my native and living region.

I think most of them are suitable for fiddle for it has been one of our favourite instruments for traditional music.

Both links have an English translation.
http://mtcn.free.fr/mtcn-traditional-music-presentation.php
Tunes from everywhere ine France

Bonne musique.