Thomas Adès, London Symphony Orchestra, Barbican Hall

Gerald Barry's one-act opera, La plus forte, is one of the most significant for a decade

If the second half of the 20th century saw opera throttled by existential crises, and left composers wondering whether the only future for the art form was for it to be hung out to dry, or to become an arcane intellectualised annex for the musical systems that were then in vogue, Gerald Barry's one-act opera, La plus forte (2006) - receiving its UK premiere in a concert performance last night - marks the end of hostilities. So effortlessly does Barry seem to rise above the tangled, stagnant realities of recent operatic and musical convention, and return and restore the art form to the business of psychological entrapment, that it's hard not to see his small, 20-minute work as one of the most significant operas of the past decade.

Judith Weir, Bath Festival

A fine folk-filled celebration of Britain's greatest female composer

In general, I’m no particular fan of composers talking in public about their own music. My family suggests that this is because I’m hoping to get the job of talking about it myself. But the real reason is that, on the whole, composers don’t tell the truth about their work – and indeed why should they? Creative work is a mysterious and impenetrable process, and it’s a very modern, right-to-know sort of assumption that those who do it should also be able to explain it. Probably nobody is. But people naturally suppose that when the horse opens its mouth, the oracle will speak.

After Life, Barbican

Bravely, beautifully banal new opera about one's last memory

"We need to inform you officially. Mr Walter, you died yesterday. I’m sorry for your loss." It comes as no great surprise to learn that Michel van der Aa’s opera After Life is based on a Japanese film. The Borgesian hyper-real scenario, the no-place location and meditative pacing all point, or rather - rejecting anything so crass - bow respectfully to their original source.

Powder Her Face, RO, Linbury Studio Theatre

Opera at its most debauched and most brilliant from Thomas Ades

Let's get straight to the fellatio, shall we. The blow job - and its Polaroid rendition - that led to the 1960s divorce trial of the dissolute Duchess of Argyll forms the centrepiece aria (an aria that "begins with words and ends with humming") in Thomas Adès's opera Powder Her Face. And how good we were: as silent as a row of Trappists. There was none of the outrage, laughter, consternation that this staged blowy could once summon up and that once led Classic FM to ban the work. Sex, when dealt with correctly - as in Carlos Wagner's revival production - is never really scandalous. It's awkward, poignant and, at times - Heaven forfend - actually kind of sexy.

English National Opera, 2010-11 Season

The complete listings for the ENO season at the London Coliseum 2010-11

English National Opera’s 2010-11 season includes 10 new productions, including ENO premieres of Donizetti’s Lucrezia Borgia and Handel’s Radamisto. There will be two new contemporary operas for the main stage: the world premiere of a new opera by Nico Muhly and the UK premiere of A Dog’s Heart by Alexander Raskatov.

The Seckerson Tapes: Fiona Shaw

What it's like playing Lady Gay Spanker while wrestling with opera

Fiona Shaw talks about the not inconsiderable demands of juggling Restoration comedy with German Expressionism. It almost doesn’t bear thinking about. Between shows at the National Theatre, where she’s been delighting audiences with her rollocking Lady Gay Spanker in London Assurance, she enthuses about her second foray into the challenging business of directing opera: Hans Werner Henze’s early gem Elegy for Young Lovers for English National Opera at the Young Vic. She enlightens us about this strange, dream-like opera-play, about the not-so-delicate balance of being a working actor and director at the same time, about her own aversion to being “directed” and what she hopes is her “Zen-like” presence in the rehearsal room.

Varèse 360°, Southbank

20th-century hellraiser still delivering the goods

For those of you who think that classical music ends with Mahler - or Brahms just to be on the safe side - that the musical experimentation of the past 60 years was some sort of grim continental joke, an extended whoopee cushion of a musical period that seemed to elevate the garden-shed accident into some kind of art form, you have two people to blame: Adolf Hitler and Edgar Varèse.

Wolfgang Rihm Day, Barbican

Isserlis performs a winning new cello concerto from the German master

It's hard to miss German composer Wolfgang Rihm. He has an enormous head. There it is, bulging from his giant frame, a big, friendly grin slapped onto it while he wanders around the Barbican on his celebratory day, none of it going to waste. Listen to his prolifically combustible music, the million and one ideas hurtling about with the energy of a school playground and the intensity of a burning sun, and you soon realise that all that cranial space is probably quite necessary.

Kaija Saariaho's Émilie, Opéra de Lyon

A new compositional turn from the Finn undermined by misogynistic madness

The new millennium shimmered into earshot with a musical masterpiece from a female Finn. Kaija Saariaho's L'Amour de Loin (2000) appeared to open up an enticing new operatic sound world, less dogmatic, more instinctive, colourful and intense, very much like the work's model, Debussy's Pélleas et Mélisande, had done a hundred years before. Ten years on, the critical establishment descended on Lyon for Saariaho's third opera, Émilie - which comes to the Barbican in 2012 - based on the last days of the life of 18th-century French intellectual, Émilie du Châtelet, to see if Saariaho could repeat the trick and set the operatic standard for the coming decade.
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