You get a lot of notes for your money in a two-piano recital - especially when seven pianists share the honours for two and a half hours' worth of playing time. Well, they did call it a marathon, crowning the London Piano Festival so shiningly planned by Katya Apekisheva and Charles Owen, and the baton passed seamlessly from two pairs of hands to the next.

Reaching for philosophical terms seems appropriate enough for two deep thinkers among Russian pianists (strictly speaking, Kolesnikov is Siberian-born, London-based). In what Kant defined as the phenomenal world, the tangible circumstances, there were equal if not always predictable measures of innocence and experience in these Wigmore recitals two days apart.

I was recently in the UK for some solo recitals and to make my debut with the Royal Scottish National Orchestra. One of the highlights of the trip was playing a similar programme in two very different settings: first on some magnificent period instruments and then a week later on a modern Steinway piano at Wigmore Hall. Having never before performed publicly on historical instruments, my recital at the Cobbe Collection at Hatchlands Park in Surrey felt like a complete experiment.

What has 12 hands, 18 legs, 176 keys and two page-turners? Party night at the London Piano Festival, of course. The six-pianist, two-piano marathon on Saturday evening was a high point of this delectable four-day event – though far from the only one.

What pianist wouldn't long to lay fingers on keyboards impregnated, as Roman Rabinovich put it in his introduction yesterday afternoon, with the DNAs of Haydn and Chopin?

No-one, least of all the players, will forget Semyon Bychkov’s 2009 Proms appearance with the BBC Symphony Orchestra in a poleaxing interpretation of Shostakovich’s Eleventh Symphony.

So it was Rachmaninov night at the Proms, but with a difference: a trinity of works sacred and profane, the first two introduced by the Latvian choir due to perform the third singing harmonised Russian Orthodox chants of the kind on which the composer based so many of his supposedly late-romantic inspirations. That was bound to enliven a bog-standard programme of the Third Piano Concerto and the Second Symphony.

It’s the best-looking Proms season on paper for quite a few years.

Talk about survival: St Petersburg, Petrograd, Leningrad, now again St Petersburg, all the same city, has it nailed down. It was founded through the mad enthusiasm, intelligence, determination and just off-the-scale energy of Peter the Great in 1703, built on the bodies of around 30,000 labourers (not the 300,000 that later rumours have suggested) at the whim of an Emperor.

"Generally speaking," writes Evgeny Kissin in one of the many generous tributes to those whose artistry he most admires, "the mastery of [Carlo Maria] Giulini is exactly what is dearest of all to me in art: simplicity, depth and spirituality". The same is true of the personality revealed in this slim but by no means undernourishing volume from one of our time's most fascinating pianists.