Yeah, a message in French may be helpful. He came to IU several years ago as a guest of Stephen Burns (with whom I was studying at the time).
Burns was on hand to translate for the masterclass and some people's lessons, but because I was a grad student he said "you're on your own!"
It was pretty funny since I know minimal French. Great lesson, though. Luckily, Aubier played a lot.
He's a very cool guy.