Messiaen: Turangalîla-Symphonie Steven Osborne (piano), Cynthia Millar (ondes martenot), Bergen Philharmonic Orchestra/Juanjo Mena (Hyperion)

Each year I wonder, as the hit-makers and Radio 1 darlings flock to the Ivor Novello Awards, how many spare a thought for that greatest of melodists, who lends his name to their accolades? Precious few, I suspect. While the musicals of Noël Coward have survived for their wit, the great American classics of Carousel and Oklahoma! for their big numbers and relatable, homespun stories, the eternally anachronistic, fatally glamorous world of Ivor Novello has disappeared without trace.

Why so many empty seats at last night’s Prom? Bringing together several choruses, a percussion-augmented orchestra, dancers, actors, rock-band and children’s choir, Leonard Bernstein’s Mass is surely a Proms dream – a genuinely eclectic work with something for just about everybody. But even as some 11 different Welsh ensembles sung, jived, clapped and shouted for our entertainment yesterday, there was no getting away from the issues with Bernstein’s ageing, mongrel score.

Elgar: Enigma Variations, Cockaigne Overture, Pomp and Circumstance Marches 1-5 Royal Philharmonic Orchestra/Barry Wordsworth (RPO)

What better work for Harry Bicket and The English Concert to perform at the Proms than Bach's joyous Mass in B Minor. Joyous firstly because of the music itself, with its vast stylistic and emotional range. Joyous secondly because, despite the intense scholarship to which Bach and his music have been subjected over the years, its genesis remains unusually shrouded in mystery for such a major work.

Another day at the Proms, another English choral masterpiece. Last night it came courtesy of the newly formed BBC Proms Youth Choir – a moveable feast of an ensemble that will bring together different youth choirs from across the UK over the next three years. I can’t imagine a more apt work to inaugurate the project than Tippett’s bravely painful meditation on human cruelty and capacity for endurance, A Child of Our Time.

Our athletes over at the Olympic Village might not yet have brought home a gold, but in an all-English programme at the Proms last night the BBC National Orchestra of Wales and combined BBC Symphony Chorus and BBC National Chorus of Wales under Tadaaki Otaka surely did just that. As the brash, glittering tumult of Walton’s Belshazzar’s Feast – “Praise ye the god of gold” – rioted around a packed Royal Albert Hall, the audience were still, marvelling at the skill and artistry of Britain (and Wales's) best.

It’s not quite 76 trombones, but back in 1570 24 violins were the height of sophistication and innovation at the French court. While in England we still persisted with our viols and gambas, in France the new vogue for the violin had travelled from Italy and the King ordered a full string orchestra’s-worth for his entertainment. The result has since been restored by the Centre de Musique Baroque de Versailles, and on Saturday afternoon the full forces (played jointly by the musicians of the CMBV and Royal College of Music) showcased their unique historical sound.

Formed especially for the London 2012 Festival, the Aldeburgh World Orchestra does what it says on the tin: bringing together talented young musicians from across the world in a single youth orchestra. Under the direction of Mark Elder, musicians from 35 countries, including Jordan, Ukraine, Malaysia and Uzbekistan amongst others, joined together to perform a mixed programme of music from Mahler, Britten and Stravinsky, as well as the world premiere of Charlotte Bray’s At The Speed of Stillness.

And so we came to the Ninth. But wasn't it meant to be the only work on the programme? Why then was I hearing Boulez? A mishap: the final movement saw the quartet of soloists fall apart so comprehensively that, momentarily, it began to sound like they'd slipped into some unscheduled Modernism. We should be so lucky. No, we were still with this strangely anti-Olympian climax to the Beethoven cycle, where faster, higher, stronger had become slower, messier, more slug-like in Barenboim's hands.