As patron for a community organisation, I see clearly how opera is the biggest collaboration going. Between stage, orchestra  pit, school liaisons, chorus leaders, make-up bays and the magicians of the technical team, every cog is of equal importance. For the last 12 seasons, Blackheath Halls Community Opera has staged an opera each year, bringing together world class soloists and enthusiastic members of the local community who make up the orchestra and opera chorus.

It may be only six and a half months since many of us saw a production of Beethoven’s Fidelio in the opera house, but that was another world, and this post-lockdown admittance to Garsington Opera’s spacious, award-winning pavilion with its impressive acoustic was always going to be something extraordinary.

One source of advance information told us to expect a reduced version of Bartók’s one-act Bluebeard’s Castle, among the 20^th century’s most original and profound operatic masterpieces.

Picture the scene. A vast steel gazebo covers a nondescript parking lot next to an industrial unit in Glasgow. With a clear plastic covering, it is the most rudimentary of shelters, sides open to admit the roar of the M8 and the wailing of sirens, carried on a keen autumnal breeze.

What could be better than Mozart’s Overture to The Marriage of Figaro to celebrate the Royal Opera’s next step on the path out of lockdown? Ideally, the rest of the opera, especially remembering Antonio Pappano’s lively interaction with his singers playing the continuo role.

In seach of Orpheus, and following a route from the Hades of (thankfully) masked beings on the underground to Archway, then up to a windy, grassy plateau just below Highgate village, this wandering critic encountered another myth about the power of life over death.

As Dvořák’s "Song to the Moon" from Rusalka rose to its impassioned climax, Natalya Romaniw had to battle a helicopter thumping overhead. The helicopter lost (well, of course it did). As Nardus Williams and David Butt Phillip disappeared into the wings after a heart-rending "O soave fanciulla" from La Bohème, a squirrel scampered centre-stage to fill the dramatic vacuum.

Nostalgia of all kinds played a part in this summer evening’s divertissement. Some audience members were probably remembering when operetta held a greater sentimental sway than it does now; many would have been thinking of the full Opera Holland Park seasons – a proper theatre with raised seating, covered stagings, full orchestra and chorus – on what was now the bare terraced spot in front of the semi-derelict house.

Barrie Kosky’s production of Moses und Aron was staged at the Komische Oper Berlin in 2015 to mark the 70th anniversary of the liberation of Auschwitz. Schoenberg’s opera is philosophical and open to a variety of interpretations.

So much for the assertion that nowhere in the world would be staging the big Strauss and Wagner operas for the indefinite future. With a combination of lavish funding and good pandemic management on Austria's part, it’s been possible in Salzburg.