Here we are again. Marvel as you enter at the aptly gaudy lighting of Albert's colosseum, but know that unless your place is with the Prommers towards the front of the arena, the musicians will often sound as if they're in another galaxy - maybe one hinted at in the George Herbert words, if hardly the Judith Weir music, of the opening BBC commission, Stars, Night, Music and Light. Though spattered with Messiaenic orchestral paint - not to mention the obbligato sniffalong from my annoying neighbour - it felt like a very tame, rather olde-British gambit.

If Eric Coates’s Knightsbridge March is good enough for Gergiev, who conducted it as a saving-grace encore of a very messy World Orchestra for Peace Prom in 2005 (17 orchestral leaders in the first violins, not a happy gambit), then it’s certainly worth the time of the BBC Symphony Orchestra and one of its biggest sound-shapers. Bright spark John Wilson unhesitatingly claims Coates as his favourite light-music composer. But this concert served up more than just bubbles in the champagne of the Southbank’s Festival of Britain 60th anniversary celebrations; there was some decent semi-serious stuff on parade, too.

Everyone in the BBCSO is a potential soloist. I know this because the course I run at the City Literary Institute linked to the orchestra has welcomed principals, duos, two string quartets and three viola foursomes (proving that department the most individual, not the dense deserving butt of many a joke). I adore these players, but I love Erwin Stein's chamber arrangement of Mahler's Fourth Symphony even more, so this was bound to be a gem. Spitalfields' UK premiere of a recent song cycle by favoured Dutch composer Michel van der Aa could only come as an enterprising bonus.

What a relief, for half of last night's semi-staged concert performance, to have left behind Britten's claustrophobic wood at English National Opera and to seek refuge in Smetana's Bohemian village inn of good cheer.

Sometimes you can leave a concert feeling slightly shortchanged: a perceived weakness in the programming; an unprepared, lacklustre conductor; a phoned-in performance. No danger of any of the above at the marathon session three of Reverberations, a weekend of concerts at LSO St Luke's and the Barbican devoted to the music and influence of the contemporary US composer Steve Reich. Actually, by the end of the evening, some people may have been ruing just how many artists have fallen under Reich's influence. We filed into the Barbican at 6pm on Saturday.

What is it about Rachmaninov's ghost-train masterpiece The Bells and death? The BBC Symphony Orchestra last played it under the great Russian conductor Yevgeny Svetlanov, who used it as a valedictory gesture knowing he had only weeks to live. Yesterday Semyon Bychkov measured out the funeral knell of its harrowing finale with surely some thoughts of his brother and fellow conductor Yakov Kreizberg, who died on 15 March at the age of 51.

Earlier this month something happened to me that's never happened before. Brian Ferneyhough's Sixth String Quartet roughed-up my critical faculties and left them for dead. I couldn't tell you what had happened, why, in what order, when. As it finished, small birds circled my head. So I entered Brian Ferneyhough Day yesterday at the Barbican as one would an egg-beater, knees a-knocking.

As Mahler symphonies rain down from heaven - or flare up from hell, according to your viewpoint - in this second anniversary year, it's wise to choose carefully. But why earmark Jiří Bělohlávek's performance of the Sixth above the likes of Gergiev, Dudamel, Jurowski or Maazel? Because he's been working his way through the cycle with his BBC orchestra at the careful rate of one a year; because he knows what space to give, and what colours to draw; and above all, because he refuses to batter our hearts too fiercely too soon - crucial for the most insistent tragic chapter in Mahler's symphonic chronicle.

Now I know why the BBC Symphony Orchestra slunk so easily into Piazzolla tango mode last Friday: they'd danced it under Latin American instruction four years ago. It's all part of their education department's annual Diverse Orchestras week, where performers from another culture come to open the players' fantasy and the onlookers get to learn something into the bargain. And learning has never been more fun than it was last night in the Tabernacle, Notting Hill's vibrant arts centre, where the Fez Andalusian Orchestra under one of the world's great string players, Mohamed Briouel, set a zinging example.