A 28-year-old British composer makes his name with a new four-hand opera, set in contemporary Britain but underpinned by classical legend, pushing the boundaries of operatic subject matter and launching a glittering career. This was Mark-Antony Turnage and his breakthrough work Greek in 1988, showing uncanny parallels with Mark Simpson and his new opera Pleasure.

Sunlit golden mean or slightly hazy middle-of-the-road? Conductor-director Iván Fischer's fully costumed and imagined concert of The Magic Flute - or perhaps it would better have been titled Die ZauberFlute given its intelligent mix of sung German and English dialogue taken by six excellent young British-based actors - was always going to be hard pressed to match the recent, hyper-communicative English National Opera/Complicite revival.

Within the wounded, divided company of English National Opera – artists and administration still at loggerheads – the buzz is surprisingly positive. CEO Cressida Pollock does finally seem to be listening: union deputies from chorus and orchestra met the final candidates for the too-long-dormant role of Artistic Director. From what I gleaned last night after the final blazing performance of Brahms's A German Requiem under the best Music Director I've seen at ENO in my lifetime, Mark Wigglesworth, they liked what they'd heard from the new incumbent, Daniel Kramer.

A mere 10 minutes in to this concert performance of an 18th century delight by Neapolitan Niccolò Jommelli, you knew the form to expect for the rest of the evening. Ian Page's Classical Orchestra kicked off with bracing rhythmic vitality from the start, and sounded super-bright in Cadogan acoustics so ideal for their forces. Then three of the main singers quickly showed their total classiness – the others were not to disappoint – with vivid continuo support led by the best in the business, Christopher Bucknall.

Tim Albery’s 2010 production of Wagner's Tannhäuser is back for a revival at Royal Opera, featuring a different conductor and a nearly new cast, with one notable exception. The production itself is serviceable, visually coherent and with plenty of atmosphere. The sets, by Michael Levine begin with a replica of the Covent Garden proscenium arch in the Venusberg scene, which is then shown in progressive states of decay in the following acts. The Venusberg choreography, by Jasmin Vardimon, is modern and slick, as dynamic as it is sensual.

The curtain is up for the overture to English Touring Opera’s new production of Don Giovanni, but no-one is on stage. Instead, we gaze at Anna Fleischle’s set: a creation in two layers. On the top, elegant Klimt panels glint with gold. Below, and joined to the opulence above by a rickety looking metal fire escape, is a Piranesi-like underworld of drab brick, archways and mysteriously curving passages – perfect for lurking or throwing sinister shadows.

Every year is Shakespeare year in theatre, opera house and concert hall. An anniversary's best, though, for those select few galas where the mind's made flexible by constant comparison between different Shakespearean worlds. I don't know how it was at Stratford last night – BBC Two will provide opportunity enough to catch up – but things could hardly have been more impressive on the Southbank, where Vladimir Jurowski and his London Philharmonic Orchestra reminded us what a gamut they've run both at Glyndebourne and at the Royal Festival Hall.

Janáček's lacerating music-drama of love-led sin and redemption in a 19th century Moravian village is the opera I'd recommend as the first port of call for theatregoers wary of the genre. Its emotional truths are unflinching, its lyricism as constantly surprising as the actions of its characters are often swift and violent. In the opera house, I've never seen a performance that didn't turn its audience inside out.

For the gentleman next to me in the Festival Theatre, this was his second outing to see Rusalka. At the production premiere earlier this month in Glasgow, he had been “blown away” by Dvořák's lyric masterpiece. Given half a chance, I would go back to Edinburgh for the second and last performance in this run; not only because this is a brilliant, beautifully judged performance, but also because the opportunity might never come again. Rusalka was last staged in Scotland by a Czech company in 1964. Will we really have to wait until the 2060s to see another?

Lucia di Lammermoor is an opera in which men spend an awful lot of time talking about women, and very little actually talking to them. (Which, if nothing else, ensures a rather more dramatic denouement than a frank conversation about everyone’s hopes and dreams would produce.) Enter director Katie Mitchell and her “strong feminist agenda”, determined to give Donizetti’s women back their voices, and with them the agency every plot twist in the opera conspires to deny.