Where did he do the Pearl Fishers duet? It's gorgeous, and I'd love to hear how it sounds with less operatic voices. Is it recorded anywhere or was it on a live broadcast?

BTW, does anyone have the exact title of that duet? I think it's something like Au Fond du Temps (or, O Fond...?) but I've only ever heard it spoken aloud, and don't have French so I can't make a better guess than the above. Will be grateful for any help -