While Merkel's Germany has won back world leadership, Wagner's festival shrine at Bayreuth lost its post-war pre-eminence years ago. There hasn't been a strong Ring there since Kupfer's, which I was lucky enough to see in 1991, and things will only improve with the departure of overweening Katharina Wagner and Christian Thielemann (fine conductor, disastrous people-person).

Grange Park Opera is aiming big. The company is in a new venue, the grounds of West Horsley Place in Surrey, where they have built themselves a spectacular new opera house in less than a year. The building is not yet complete, but is close enough to stage a full summer season, including this new production of Die Walküre, the second opera of Wagner’s Ring cycle.

This show feels like an end-of-the-exams party, and in a way that’s exactly what it is. If the fruits of Emma Rice’s short tenure as Artistic Director at the Globe were a series of tests that she is deemed to have failed, then Tristan & Yseult, a revival of an early hit devised for the company Kneehigh, is her parting two-fingered salute.

The Longborough Festival was started, essentially, to perform Wagner, and Wagner is still what it does best. This revival of Carmen Jakobi’s production of Tristan und Isolde is the strongest argument imaginable for small-theatre Wagner.

No-one has ever matched costume drama to psychological depth quite like Luchino Visconti.

Recent British-based productions have taken Wagner's paean to creativity, the reconciliation of tradition and the individual talent, at face value.

Ermanno Wolf-Ferrari has never quite been a one-work composer. No points for knowing the fizzy overture to his delightful 1909 pro-smoking comedy Il segreto di Susanna; quite a few more if you know the whole opera. Extra credit for being able to hum the once popular "Serenata" from I gioielli della Madonna: but move on to his major operas – L’amore medico, say, or I quatro rusteghi – and we’re definitely into specialist territory.

Jonas Kaufmann’s legion of admirers could rest content. A well-received Lieder evening last week demonstrated that the world’s hottest tenor property had returned, both to London for a three-concert residency at the Barbican, and indeed to singing after burst blood vessels had forced several months of rest and cancelled concerts.

Strauss: Suites from Elektra and Der Rosenkavalier Pittsburgh Symphony Orchestra/Manfred Honeck (Reference Recordings)

With two of the biggest parts of the tetralogy already behind them, it might have seemed that Sir Mark Elder and the Hallé would aim simply at as near a perfect recording-cum-concert of Das Rheingold as possible, to get one more in the can and head for the final straight in a year or so’s time. But this Bridgewater Hall performance was more than that: a magisterial account of the score – done in one continuous take of two-and-three-quarter hours – and the recording based on it and its rehearsals, when it appears, will no doubt be a notable and probably great one.