One way to look at Stravinsky's celebrated collaboration with W H Auden and Chester Kallman is as a numbers opera in nine pictures, four of them indebted to Hogarth's series of paintings/prints.

Feeling stir-crazy right now? Imagine being confined to one room with a half-crazed housekeeper, two dysfunctional kids and two increasingly insistent ghosts, plagued by nightmares, unable even to get out into the garden or walk down to the lake.

Only the birds will be singing at country opera houses around the UK this summer. Glyndebourne seems over-optimistic in declaring that it might be able to launch in July; other companies with shorter seasons have made the regretful but right decisions to call it a year.

So Susanna and Figaro got married on Saturday, just before the entire Almaviva household and its home, the London Coliseum, went into quarantine.

That virtue can be fascinating and prayers to a just God dramatic have been proved in riveting productions of two late Handel oratorios, Theodora and Jephtha. Whether Susanna can ever be reclaimed for the stage as powerfully seems unlikely, but this showcase for the Royal Opera's Jette Parker Young Artists Programme may just have bungled it.

Emblazoned on a drop-curtain in front of a mirror-image of the auditorium, the three great tenets of the French revolution seem to be mocking us right at the start, above all the second of them: equality, really, given the make-up of the Royal Opera stalls?

Cosi fan tutte is, as the opera’s subtitle clearly tells us, “A School for Lovers”. But too often these days it can feel like a school for the audience. Joyless productions lecture us sternly on the battle of the sexes – on chauvinism, feminism, cynicism and sex – until we’re battered into fashionable discomfort. A happy ending? For Mozart’s most complicated comedy? Don’t be naïve.

Scotland was at the cutting edge of culture in 1988, when the Edinburgh International Festival hosted the UK premiere of Nixon in China in the Houston Grand Opera production at the cavernous Playhouse.

Once upon a time writing an opera was first and foremost a question of choosing a good story. But times move on, and today – as Nicholas Till reminds us in a fascinating programme note for Philip Venables’s and Ted Huffman’s new chamber opera – the medium is the message, and the how has become at least as important as the what. 

Those who booed the production team last night - there was nothing but generous cheering for singers, conductor and orchestra - might reflect that this was at least regietheater, that singular brand of not-all-bad director's opera in Germany, with discipline and purpose close enough to its subject. There were some cliches and the occasional question-mark - who's the trembling, plastic-wrapped youth in underpants and why the nearby oil drum?