It’s not hard to see why The Sicilian Vespers has struggled since its surprisingly successful opening run at the Paris Opéra in 1855. Verdi had composed it reluctantly, despised the librettist, Eugène Scribe, who he regarded as a well-named cynical scribbler, and tried unsuccessfully to get a release from his contract. The result is undeniably patchy, narratively implausible to the point of silliness, and though tight by the standards of French grand opera, nevertheless at least one scene too long.

"About as much fun as you can have with your clothes on," promised a member of the two Royal Opera casts teamworking their way through multiple roles and costume changes for what in effect is Alice's Adventures Under Ground and Through the Looking Glass in under an hour.

Wigmore Hall audiences don’t usually roar. But when a star soprano who has already made her mark at the world’s major opera houses pays a visit, they do.

Of Wagner's four Ring operas, Siegfried poses the biggest casting problem. Most heroic tenors with the lungs to last the evening are not going to be ideal incarnations of the stroppy adolescent who learns and fights his way through an often nightmarish fairy-tale landscape. Torsten Kerl, not an agile mover to say the least, certainly wasn't.

Kurt Weill’s “Broadway opera” – his own preferred description – is an extraordinary and brilliant piece of work. Its music ranges from the seriously dramatic to fun numbers like the "Ice Cream Sextet" and the jitterbug dance song “Moon Faced, Starry Eyed”; there’s a lot of spoken-dialogue-with-music, as well as solos, duets and all manner of ensembles; and the story is both comic and tragic.

Admirable as it was of the London Philharmonic Orchestra to launch its concerts in 2020 with a performance celebrating the Ravi Shankar centenary, the hard fact remains that this lively spectacle might have worked better without two-thirds of its players.

You can see the temptation.

There's no question about my top opera choice for 2019, especially since the London houses rarely delivered at the same pitch of engagement. It's Graham Vick's walkabout Birmingham Opera Company spectacular, a production of Shostakovich's Lady Macbeth of Mtsensk that worked on every level.

"Sadler's Wells! Any more for Peter Grimes, the sadistic fisherman?," a cheery bus conductor is alleged to have called out around the time of this towering masterpiece's premiere in 1945. The side of a "Grimes bus" today would probably proclaim over Britten and the work itself the "brand" of two stalwart perfomers - conductor Edward Gardner and leading protagonist Stuart Skelton, dominant forces of the opera over the last ten years.

Death in Venice is usually a dark and claustrophobic affair. It lends itself to small-scale staging with minimal props and suggestive, low-key lighting. But for this new production at the Royal Opera, director David McVicar has taken a different approach. He has used all the resources at the company’s disposal to create a more expansive vision.