This week’s reviews include a generous Liszt anthology played by one of the 20th century’s most fondly remembered pianists. There’s a reissued box of Beethoven symphonies performed on modern instruments by one of the classiest European orchestras. Heading further north, we've a repackaged set of Sibelius symphonies with some essential extras.

With regional youth orchestras dropping from a thousand short-sighted, wholesale cuts - flagship Leicestershire the latest under threat - it should be enough just to celebrate 60 seasons of the LSSO, safe for now under the City of London's munificent wing. But last night was more than just another fun concert. No one ought to miss any appearance of the, ahem, enormously charismatic Leif Segerstam, composer of 244 symphonies to date and master orchestral trainer, who always goes for depth of sound rather than surface glitter.

Never envy a relatively new voice in music his or her place in a concert shared with Sibelius. Invariably the economical Finnish master will triumph with his ideas and how he streams them in a forward-moving adventure. You sit staring at all the percussion Sibelius never needs, and wonder whether the newcomer will engage it more imaginatively than most of his peers. Which fortunately turned out to be the case with Detlev Glanert's 15-year-old Music for Violin and Orchestra, fearlessly taken on by one of the BBC Symphony Orchestra's two world-class leaders, Stephen Bryant. But given Principal Guest Conductor David Robertson's urgent, sensuous way with Sibelius, the German's flickering homage to the Orpheus of Rilke's sonnets still hovered in the shadows.

It will remain one of the most unforgettable times of my life - the privilege of spending four hours alone with the curator in the house of Jean Sibelius outside Helsinki, deep in a snowbound March scene.

Their oaky, cultured and selectively scary-wild playing seemed to cast long autumn shadows over a sparse but intent audience. This is the kind of rare programme top violinist Christian Tetzlaff, his cellist sister Tanja and friends like to work on when they get time to play together. There was Haydn for starters, but not the kind of jolly curtainraiser we're usually given; Dvořák, but not the blithe American; and Sibelius's Voces Intimae, the only great quartet of the 20th century yet to be widely acclaimed as such, with strange, authentic ideas in every bar and a slow movement to match any in Beethoven's late masterpieces.

Esa-Pekka Salonen and his dauntless band of Philharmonia players have been wrestling with heroes. After a celebration of Wagner's Tristan, the legend-making shifted further north last night. Here was Sibelius first as the plain-singing, well-loved bard of Finnish endurance and then as the startlingly original creator of a musical alter ego in the shape of mythical adventurer Lemminkäinen. Salonen's edge-of-seat interpretation made two things startlingly clear: that the four movements of the misnamed Lemminkäinen Suite can constitute as radical a symphony as any of Sibelius's numbered seven, and that this surging orchestral tidal wave is as iconoclastic a work in its own rugged way as Wagner's opera.

This was the Prom I’d earmarked as the most unmissable event out of this year’s 76. Starry attraction was the century-overdue UK premiere of maverick-mystic Dane Rued Langgaard’s Music of the Spheres, born for this of all venues.

Venezuela's joyful musical education programme known as El Sistema is the phenomenon of the age, the success story that many western countries now seek to replicate. And that's great. But Britain, for a start, might re-engage its own back-to-basics in music quicker by looking closer to home and seeing how Finland does it. In a small population, every child has free access to an instrument until secondary school.