Raoul's title

[igenlode]

It's just dawned on me that Raoul in the musical is definitely the son of a Vicomte rather than of a Comte -- when we see him in old age at the auction, the auctioneer calls out the name of the Vicomte de Chagny, and whether or not he has inherited his father's title at the time of the main action, he will certainly have inherited it by this point.

(Unless, of course, he does have an off-stage elder brother who in this version is not killed by Erik and peacefully continues the line of Comtes :-p)