How do they do it? Bach and Angela Hewitt, I mean, transfixing and focusing the audience in the Wigmore Hall – at home, too, hopefully, thanks to the livestreaming– through 13 and three-quarter fugues and four canons, all starting in the same key and (until the last) on the same theme, plus a benediction, the glorious whole amounting to an hour and a half without a break.

Clearly it takes peculiar circumstances for some of us to hear the Academy of St Martin in the Fields within its eponymous church – that’s a first for me. The lure was considerable. Quite apart from the relative dearth of live events in London, the programme was of the imaginative kind more ensembles should be thinking about: three solos by a German, a Frenchman and a Scot resonating between each other, followed by the addition of increasingly larger groups of players, a kind of paradigm for lockdown and thereafter.

Songs of the beyond versus the profundity of the here and now struck very different depths in the Castalians’ evening concert at the Wigmore Hall and Elizabeth Llewellyn’s recital with equal partner Simon Lepper the following lunchtime. It was good to have the very human anchoring of Haydn’s “Emperor” Quartet, Op. 76 No.

There was a rainbow over the Royal Festival Hall as I crossed one of the Hungerford foot bridges for the first time in six months. The lights and noises inside did not betray the augury. Was it the sheer hallucinatory pleasure of being within the auditorium with a handful of other spectators watching and hearing a full orchestra after what felt like a lifetime?

My first time back in a concert hall since March was also, more significantly, the first time back for last night’s Wigmore Hall performers, guitarist Miloš Karadaglić and saxophonist Jess Gillam.

Even bigger things have happened to Sheku Kanneh-Mason since I last saw him performing alongside his contemporaries in the Fantasia Orchestra – That Royal Wedding, for instance, and a Decca contract. Yet it looks like he will always have the wisdom to hurry slowly.

An early hero of lockdown, livestreaming from his Berlin home in terrible sound at first, Igor Levit is a supreme example of how adaptable musicians can survive in times like these.

It wouldn’t be true to say I’d forgotten what a solo cello in a fine concert hall sounds like; revelation of an admittedly sparse year will undoubtedly remain Sumera’s Cello Concerto played by young Estonian Theodor Sink at the Pärnu Music Festival in July.

Music going back to nature, or rather the managed nature of a London park, can make you think and feel quite differently about great composers’ responses to the world around them.

“It’s SO good to be back,” said Catherine Bott, and it would be impossible to disagree with her. She was presenting the livestream of the first concert to be performed in front of an audience at Wigmore Hall since March.