And so the Academy of Ancient Music’s triptych of Monteverdi operas at the Barbican comes to an end, three years after it began with Orfeo. If 2014’s Poppea was the cycle’s sexually-charged climax, then this Ulisse is the dark, contemplative coda – a sobering moment of morality after the victorious excesses of opera’s most venal couple.

It’s almost impossible to imagine what a Handel opera performance can have been like in London in the 1730s, when Orlando first appeared. The audience came primarily to hear their favourite singers: and these must have been sensational, if not unduly dedicated to the dramatic verities they were supposed to be representing: castrati like Senesino and Farinelli, sopranos like Cuzzoni and Faustina (who once came to blows onstage, presumably trying to upstage one another).

“The music quacks, hoots, pants and gasps”: whichever of his Pravda scribes Stalin commandeered to demolish Shostakovich’s “tragedy-satire” in January 1936, two years into its wildly successful stage history, didn’t mean that as a compliment, but it defines one extreme of the ENO Orchestra’s stupendous playing under its new Music Director Mark Wigglesworth. On the other hand there are also heartbreaking tenderness, terrifying whispers and aching sensuousness.

Was it when we all obediently received, then held, contemplated, then savoured, then (and only then) swallowed a single grape? Or was it as we paced solemnly round the room for the sixth time, whirling brightly coloured plastic tubing above our heads to make a whirring sound, that the penny dropped? Actually I’m fairly certain it was being exhorted, for the nth time, to “embody alertness”, to feel my “super-alert hands” that did it for me. Don’t be fooled by the marketing: Rolf Hind’s Lost in Thought is no more an opera than I am a yogi.

Mark Wigglesworth and I go back quite a long way in terms of meetings – namely to 1996, when I interviewed him for Gramophone about the launch of his Shostakovich symphonies cycle on BIS. He completed it a decade later, though that release hung fire until last year. We should have discussed the whole project shortly afterwards, but despite his generously coming to talk to the students in what was then my Opera in Focus class about Parsifal, which we were studying, I wasn’t able to keep my part of the bargain.

There’s just something about an opera orchestra when it’s let out of the pit. The Royal Danish Orchestra is more than that, of course – it makes much of its six centuries of history, and since its past members included John Dowland, Heinrich Schütz and Carl Nielsen, why wouldn’t it?

Antonio Salieri. Mozart’s nemesis – wrong. Beethoven’s teacher – right. Unjustly neglected in his own right – maybe. Bampton Opera have put some flesh on the bones of his reputation with an English-language production of La grotto di Trifonio, first performed in Vienna, October 1785. They have done Salieri proud: we can see for ourselves why he is who he is.

The tale of Orpheus – a musician so talented his art could overturn the laws of the universe – is the originary myth of opera itself. Is it any wonder, then, that it’s a story that the genre continues to tell and retell with such care and fascination? Three versions, spanning almost four centuries from Rossi’s 1647 Orpheus to Little Bulb Theatre’s 21^st-century production, punctuate the current Royal Opera House season, starting with Gluck’s Orphée et Eurydice – seen for the first time in the company’s history in its French reworking.

Whatever one may feel about Bellini’s music, it’s hard to think of him as in any sense a political composer. So you could almost hear the hearts hit the floor when the curtain went up – or rather was as usual already up – on the opening of Bellini’s Puritani with Orangemen and a scruffy Catholic Arturo instead of good old Roundheads and Cavaliers. Surely Annilese Miskimmon isn’t trying to make Bellini relevant and meaningful, with Elvira’s madness as some kind of reductio ad absurdum of power-sharing.

In 2007, a tiny British theatre company called 1927 staged their first ever show at the Edinburgh Fringe – the darkly reimagined collection of fairytales and fables Between the Devil and the Deep Blue Sea. Now, almost a decade on, they are back where it all began – not at the Fringe but the Edinburgh International Festival, with their acclaimed Komische Oper production of The Magic Flute.