All depends at what level we're talking about, Jack. I know several English players who live in France and play French music (as well as English music) - but not, perhaps, at a newsworthy level. Tim Broadbent is a Brighton chap (Hove, actually) who has lived in France for several years and plays all sorts of stuff with Marseille violinist Christian Fromentin.

I suppose there's a difference in simply living in and integrating into a local culture, including musically - and being a major player in that culture.