Two years after its first festive spree of 100 events, Kings Place has become the most congenial of all London's concert-hall zones in which to hang loose. On Friday afternoon I could have trotted happily between Russian piano classics, youth jazz and storytellers. I stayed with pianist Mikhail Rudy and cellist Alexander Ivashkin because I was intrigued to know how Rudy's stamina would hold out from a monument of the Russian repertoire in the first concert to a punishing transcription in the third.

Monteverdi’s 1610 Vespers are something of a musical enigma. Neither their true pitch nor order of movements, their origins, nor even whether they were intended as a complete sequence is known for certain, prompting scholar Denis Arnold to conclude that, “to perform it is to court disaster”. Such a grim augury however has done little to discourage musicians, and in this, their 400th anniversary year, Monteverdi’s Vespers have been ubiquitous.

Maybe it's a truism that most instrumental music, at least before World War One, aspires to the condition of song. Few have gone farther in that respect than the composers of the three purely orchestral works in last night's Prom. Add to the mix a conductor of impeccable operatic credentials who knows how to draw intimate vocalising from his players, a promising lyric-dramatic pianist and one of the most unusual great soprano voices of our time, and an evening of singing heartbreak was the result.

It was one of those moments that every conductor (and orchestra) dreads: “The Procession of the Sage” from Stravinsky’s The Rite of Spring is in rip-roaring full cry, percussion grinding and scratching, high trumpet screeching – but Daniele Gatti, it would seem, loses a bar somewhere and gives his Orchestre National de France a premature cut-off, leaving the entire brass section between a rock and a hard place. Stop or play on? An ignominious collapse ensues – as big a blunder as I’ve heard in any professional concert in years. Who says The Rite of Spring no longer has the capacity to shock?

One Proms blockbuster effortlessly reached its goal last night when Paul Lewis crowned his Beethoven piano concertos series with a diamantine "Emperor". Two more suggested themselves in a challenging quartet of big works programmed by the Royal Scottish National Orchestra's brilliant music director Stéphane Denève. I now hunger for concert performances here conducted by Denève of Berlioz's Benvenuto Cellini and James MacMillan's The Sacrifice. On the evidence of the late-night Prom's box of delights, I even uncharacteristically want to hear all of Vivaldi's Orlando furioso with Philippe Jaroussky and Marie-Nicole Lemieux as the stars.

One Proms blockbuster effortlessly reached its goal last night when Paul Lewis crowned his Beethoven piano concertos series with a diamantine "Emperor". Two more suggested themselves in a challenging quartet of big works programmed by the Royal Scottish National Orchestra's brilliant music director Stéphane Denève. I now hunger for concert performances here conducted by Denève of Berlioz's Benvenuto Cellini and James MacMillan's The Sacrifice. On the evidence of the late-night Prom's box of delights, I even uncharacteristically want to hear all of Vivaldi's Orlando furioso with Philippe Jaroussky and Marie-Nicole Lemieux as the stars.

We should lie down to listen to music much more often. Gravity pulls away the thought and frown lines, smoothes the intellectual tracks and folds on the face, while you feel the blood in your head pumping lushly to dreamier parts of your brain. Joanna MacGregor’s If-A-Tree festival at the Royal Opera House this weekend may well be hitting some fey bases along its way, but Earthrise: The Lying Down Concert - was a spectacularly enjoyable opening event.

My abiding memory of the Berlin Philharmonic’s second Prom under Sir Simon Rattle on Saturday will be of 6,000 people listening with rapt, or at any rate silent, concentration to Schoenberg, Webern and Berg. Has it ever happened before?

Call me a paradoxically wary old Mahler nut, but I reckon that given 24 months of anniversary overkill, it might keep things fresh to catch each of the symphonies live no more than once a year. So, having heard an Everest of a First Symphony from Abbado in Lucerne last August, I thought Rattle's might be the team likeliest to do this far-from-beginner's symphony similar justice. Did its Proms Mahler One compare well with the Swiss festival love-in?