(Photo: courtesy of Vannina Santoni) Jules Massenet completed more than 30 operas over the course of his career, scoring numerous successes. Within a few years of his death, however, his reputation had faded. Today, apart from “Werther,” “Manon” and to a lesser extent “Thaïs,” most opera-goers would struggle to name more than one or two other titles. Opera companies reinforce {…}