Music Director Yannick Nézet-Séguin conducts Massenet’s tragedy, a perfect vehicle for outstanding tenors, starring Piotr Beczała, who certainly fits the bill. The magnificent mezzo-soprano Joyce DiDonato is Charlotte, the object of Werther’s misguided affections, alongside sopranos Erin Morley and Ying Fang as Sophie and baritone Etienne Dupuis as Albert, in Sir Richard Eyre’s arresting production.