“Now I’ve conducted Tristan for the first time,” the 27-year-old Richard Strauss wrote from Weimar to Wagner’s widow Cosima in 1892, “and it was the most wonderful day of my life”.

This lively interpretation of Richard Strauss’s opera within an opera provides a feast for the senses as a musical highlight of the Edinburgh international Festival.

Feet firmly planted on fertile native soil, but always open to the world, lyric-dramatic soprano Birgit Nilsson soared into realms no-one from the rolling hills and coastline of Sweden’s Bjäre peninsula, where she grew up, could possibly have imagined. The Met, Bayreuth, and all the other great opera houses of the world fell over themselves to acquire stakes in her special incandescence, but she always returned to her home region.

This delectable Prom hid behind the title "To Soothe the Aching Heart" the failsafe concept of a programme of the world’s favourite opera extracts, plus some. Take six British opera stars – three sopranos, two tenors and a mezzo – and assign them the business of comforting us all.

It’s hard to know where to start with this chaotic Hansel and Gretel, and not just because Humperdinck’s opera has been cut, spliced and re-stitched with a brand-new libretto, new characters and multi-track, multi-option audio. The restless, competing ideas, the gaudy design, the ill-judged tone, the fussy technology all conspire against the performers, who produce some fine singing despite everything.

The love of power corrupts, the power of love falters or fails.

“Time-travelling” is how Enrique Mazzola, the superb first conductor of Glyndebourne’s last new production of the main season, described the slow-burn trajectory of Verdi’s semi-masterpiece Luisa Miller in his First Person here on theartsdesk.

There are advantages and disadvantages about opera-in-the-round, and it’s a format that suits some operas better than others. Longborough’s Cunning Little Vixen, staged by Olivia Fuchs in their new big-top tent, makes the very most of the advantages and pushes the disadvantages into the shade, without entirely obliterating them. It’s a lively show, very well sung, cleverly, energetically acted and directed; but the problems, of which more below, refuse quite to go away.

Now that the summer opera-house companies have pulled off staged triumphs under the most difficult of circumstances, it’s time to celebrate semi-al-fresco concerts. Not so many have cropped up as I’d hoped after the success of the Battersea Park Bandstand Chamber Music series last year. The Wigmore Hall made a start in nearby Portman Square and we have a host of impressive August events planned by Bold Tendencies in Peckham Multi-Storey Car Park, building on the successes of 2020.

Play it straight and you’ll get more laughs: that’s the standard advice on great operatic comedies like the masterpieces of the Gilbert & Sullivan canon, Britten’s Albert Herring, Verdi’s Falstaff, Puccini’s Gianni Schicchi. In comparison, for all its musical sparkle, Rossini’s Le Comte Ory may have amusing situations, but zero psychological insight into the characters, and plods along for the first half of Act One with very little intrinsic humour.