Under what circumstances can Shostakovich’s Eighth String Quartet, the most (over)played of the 15, sound both as harrowing as it possibly can be and absolutely fresh? Well, the context helps: hearing it at the breaking heart of the fourth concert in the Jerusalem Quartet’s Shostakovich cycle gave it extra resonance with the works on either side of it. But above all this is a team that plays with a degree of nuance, weight, beauty and commitment that I’ve never heard even the composer’s preferred foursome, the Borodin Quartet, surpass either live or in their numerous recordings.

Depth, height, breadth, a sense of the new and strange in three brilliantly-programmed works spanning just over a century: all these and a clarity in impassioned execution told us why the BBC Symphony Orchestra was inspired in choosing Finn Sakari Oramo as its principal conductor.

Valery Gergiev once described Yevgeny Svetlanov’s USSR - later Russian - State Symphony Orchestra to me as “an orchestra with a voice”. Then Svetlanov died and the voice cracked. Which are the other big Russian personalities now? Gergiev’s own Mariinsky? I don’t hear it. Yuri Temirkanov can still bend the St Petersburg Philharmonic Orchestra to his own whim of iron. The Russian National Orchestra was never in the running. But the Tchaikovsky Symphony Orchestra of Moscow Radio, to give its full title, still sounds as deep and rich as it did when I last heard it live nearly 30 years ago.

Well! Just when you think you’ve constructed a nice tripartite schema for dance styles based on their relationship with the ground, along comes a company which tears up that rule book entirely.

The first half of this concert was quite the family affair: Martinů’s Concerto for Two Pianos featuring the eternally youthful Katia and Marielle Labèque, with the latter’s husband Semyon Bychkov conducting.

There are probably more fine string quartets in the world than audiences to listen to them, or so a gloomy estimate from a major chamber music festival would have us believe. Fortunately the Wigmore Hall usually guarantees crowds to hear the best, and at the highest level too we’re spoilt for choice. After two outstandingly vibrant recent visitors, the Belcea and Jerusalem Quartets, the equally touted Pavel Haas Quartet merely seemed very good rather than great, though they upped the stakes when mercurial 22-year-old Daniil Trifonov joined them for Shostakovich’s Piano Quintet.

A previous visit to the Wigmore Hall saw the Jerusalem Quartet make headlines for all the wrong reasons, after political protestors disrupted the live-broadcast concert. Last night however all was mercifully calm and music-focused for the start of the first three-concert sequence in the quartet’s Shostakovich cycle, though audience members did have to brave the rather incongruous bouncers, lined up in their casual-with-just-a-hint-of-don’t-even-think-about-it chic outside the hall doors.

This was Sakari Oramo's first concert with the BBC Symphony Orchestra since taking over as chief conductor. Of course he knows the orchestra well already, but it was important to make this a good ’un, and so it was.

Pure, unorthodox genius: the terms apply both to the three works on the Belcea Quartet’s programme – Haydn at his most compressed, Britten unbuttoned and sunny, Shostakovich hitting the tragic heights – and, if the term “genius” can be applied to re-creative artists, to the players themselves. Corina Belcea could surely have as big a solo career as violinists like Julia Fischer and Lisa Batiashvili, but she chooses to work with equally committed colleagues Axel Schacher, Krzystof Chorzelski and Antoine Lederlin in what is by and large a greater, wider repertoire.

Brahms Beloved: Symphonies 2 & 4, Clara Schumann Lieder Orchestra Sinfonica di Milano Giuseppe Verdi/John Axelrod, with Indra Thomas, Nicole Cabelle (sopranos) (Telarc)