Werther: Jonas Kaufmann sings beautifully – but is upstaged by his beloved Charlotte

• Jonas Kaufmann is back, and there’s the feeling of a big operatic event. After a series of Covid-related cancellations, the German tenor, who has become one of the very few stellar singers of his generation with a huge public following, has returned to take on the role of Massenet’s Werther for the first time with the Royal Opera. On the face of it, this is a role well suited to an eloquent, lighter teno, which is among the vocal styles Kaufmann has cultivated – previous Werthers at Covent Garde