The Carl Rosa Opera, the only all-touring opera company left in the world in this age of high travelling costs, has fallen on difficult days. No doubt the provincial British cities should count themselves lucky that any opera company visits them at all. In the United States, Fortune Gallo's San Carlo Opera Company, which used to cross the continent with productions as good as the Carl Rosa's pre-war best, has not been on the move for more than a decade, and the only itinerant spectacles of the kind are packaged single operas sent out from time to time by various New York concert managers.