Maxim Vengerov’s four-year absence from the London stage is recent enough that any performance by him has the added value of having been clawed back from a jealous god. That a violinist of such explosive talent could have been permanently silenced by something as mundane as an injury sustained in the gym is barely thinkable, though the possibility seemed very real in the hinter years between 2008 and 2012.

John Cage 100 Various artists (Wergo)

Viennese night in Glasgow’s Candleriggs was hardly going to be a simple matter of waltzes and polkas. True, its curtain-raiser was a Blue Danube with red blood in its veins rather than the anodyne river water of this year’s New Year concert from Austria’s capital; one would expect no less from Donald Runnicles after the refined but anaemic Franz Welser-Möst.

The billing for this all-Schubert concert, "Spira Mirabilis and Kate Royal", was a little misleading, since they did not actually share the stage at any point, the two halves being clearly separate events. First came the hour-long Octet, played by members of Spira Mirabilis, followed by half an hour of songs with Kate Royal accompanied by Malcolm Martineau.

Why is music? A child’s question, a great question. One answered by Evgeny Kissin’s piano recital at London’s Barbican Centre last night, where you might want to engage analysis and come up later with answers but what happened was that you left the concert hall feeling more alive, emotions retooled, spirit lightened, range widened. Music is because. Why else would Beethoven compose 32 piano sonatas? What possible purpose of Haydn to write 62 of them? Because.

It’s something of a fashion at the moment for countertenors to break out of the baroque, to have a bit of a fling with classical and even romantic repertoire. David Daniels has experimented with Berlioz, Philippe Jaroussky has flirted as only a Frenchman can with the mélodies of Massenet and Hahn, and now Andreas Scholl is embracing his native lieder.

Bach, Beethoven, Schubert Reiko Fujisawa (piano) (Quartz)

What an era for pianists it was in the four decades from 1800 to 1840, the era covered by Murray Perahia’s recital last night. Beethoven, Schumann, Schubert and Chopin all in full verdant flight, selected for a programme of much fantasy and dancing rhythms, in which the translucent, crystalline playing of the American found and told multiple stories.

Oh boy. More Schubert. Deep breath. I had flashbacks of last month's wall-to-wall Franzi on BBC Radio Three. Nothing's come closer to ending my lifelong love affair with the tubby Austrian than the endless stream of half-finished three-part drinking songs that seemed to become the mainstay of that week-long celebration. Thankfully, last night at the Royal Festival Hall, we weren't getting any old Schubert. We were getting the great final trio of piano sonatas. And it wasn't just any old pianist performing them.

Hurry! Hurry! Hurry! Only the last umpteen hours left of BBC Radio 3’s The Spirit of Schubert marathon. After some 200 hours of broadcasting to mark the 215^th anniversary of his birth, Franz can perhaps be left to rest easy for a while. The poor chap has been scrutinised, analysed and turned inside out this week.