What would you imagine the composer John Adams might choose to conduct – apart, that is, from a little something he himself made earlier? Well, the first of two London Symphony Orchestra concerts this week brought no big surprises: Sibelius’ Sixth Symphony was in essence a little like returning to his minimalist roots – a bunch of insistent melodic cells and dancing ostinati. Flanking it, as if to reassert that everything Adams writes is essentially operatic, was orchestral music born of opera: Adams’ own Doctor Atomic Symphony and the “Four Sea Interludes” from Britten’s Peter Grimes. Adams, the conductor, had his work cut out.

Whoever said it was better to journey than to arrive might have been thinking of Sibelius. The arrivals can be pretty spectacular – as here in Osmo Vänskä's tremendous account of the Second Symphony – but the getting there – or not – is what this music is all about. When Vänskä conducts Sibelius he doesn’t just traverse the musical landscape, he inhabits it, breathing it in, feeling its pull, overawed at the threshold of where sound becomes silence and vice versa. He is Sibelius’ eternal Wanderer. Barenboim may have stolen the column inches this week but Vänskä has stolen hearts and minds. Whether or not you have ever experienced his Sibelius – get thee to the two remaining concerts.

As was hoped, Osmo Vänskä, the livewire music director of the Minnesota Orchestra, showed us exactly why he's the greatest living Sibelian last night in the first concert of the London Philharmonic's Sibelius cycle. Ducking and diving, crouching and corralling, Vänskä worked the podium like some mad ant, scurrying now over to the violas, gesturing now manically to the horns, his hands rattling fiercely like a jilted Old Testament prophet, sculpting, harrying and rousing the orchestra to peaks and troughs of ecstasy and despair.