The history of Estonia has been described as “a story set to song”. The Estonian activist Heinz Valk called singing “our nation’s most glorious form of self-expression.” There are, of course, other nations where singing is seen as an expression of national identity, but probably none more so than the Baltic country.

I’ve always loved the sound of two-piano music: the amazing range of available textures, the interplay of parts and the sense of collaboration between soloists.

As the Statue of Liberty appears in Charlie Chaplin’s The Immigrant, our improvising pianist proclaims “The Star-Spangled Banner”, only for it to slide dangerously.

Music in London has faced down plagues, puritans, philistines and planners over the four centuries spanned by the Aurora Orchestra’s season-opener at Kings Place on Saturday. This concert in the venue’s “London Unwrapped” strand filled its main hall without distancing for the first time since the capital’s (and the world’s) latest pandemic struck.

So, blinking, after too much isolation, into a spring evening for a first live indoor gig for over a year was always going to be exciting, if just for novelty value. But for a gentle breaking-in to live music, the London Bulgarian Choir was an inspiring choice. Having 26 singers on stage is an achievement at the best of times.

The clever programming of the “Unwrapped” series has been transformational for the reputation of Kings Place. Ever since the Bach series in 2013 these year-long sequences of concerts and other events have succeeded in silencing the crustier commentators, and in putting the London arts venue properly on the map.

Like a hokey-cokey, we’re back to live music in London – but for how long? I overheard another audience member explaining it was her third time at Kings Place this week, as people cram in as many concerts as possible before a feared return to cultural lockdown.

For the performers and the venue there can be nothing but praise. To be back in Kings Place’s Hall One after so long was to realise afresh that no other London venue gives such air to soaring strings – and these ones truly did soar and gleam. For the programme, not quite so much.

Rarely have I seen so many smiles on stage as at Kings Place on Saturday. The combination of the delight of the performers being back in their natural environment with the genial and generous-spirited music they were playing brought out the best in everyone.

The latest wave of musicians to make their voices heard comes from the freelancers who haven't been able to claim anything so far for their loss of income and of the ability to work together.