composer Picard listens to in First Contact?

Who is Picard listening to (and cranked at that) at the beginning of First Contact? Riker offers, “Bizet?” and Picard corrects him, but I have never been able to make out what he says.

I think it might have been Ravel.

“Vallon Sonore” from Les Troyens, by Hector Berlioz.