There’s a good deal to be said for semi-staged opera. It concentrates the mind in a particular way; it brings the orchestra more fully into the action; it moves the singers closer to the audience; and above all it reduces – even removes – the power of the director to superimpose some crackpot notion of his or her own on the dramaturgic design of the composer and librettist.

Carlos Acosta is that rare 21st-century phenomenon – a performer who has become a household name without the help of reality TV. Even people who run a mile from ballet know the story of the Havana slum boy made good through perseverance and pure talent, from countless primetime documentaries as well as a self-penned book and stage show. The Royal Ballet cannot have imagined how things would turn out when it signed its first (and, to date, only) black principal 17 years ago.

“No courtier or lady’s champion would dream of fighting a duel anywhere else…” The setting for duels, liaisons, champagne and love, Paris’s Pré aux Clercs gives its name to Ferdinand Herold’s almost-comic 1832 opera – a welcome mood-lightener in this season’s otherwise tragic fare at the Wexford Festival. But though the piece does end in marriages rather than deaths (at least, for those who matter), it’s not quite the uncomplicated piece of silliness we might expect, or hope, from such a staple of the Opéra Comique.

A Hawksmoor church ought to be the right setting for the psychological terror of Britten’s great chamber opera, a slanted but still chilling adaptation of Henry James's novella. True, the once-deroofed interior has been coolly revamped as a rehearsal and performance venue, but imaginative lighting and a clear acting space, with room for a 13-piece ensemble to the side, ought to do the trick.

Castanets in Wagner? The imperfect Wagnerite will identify them in one place only: the Venusberg ballet music of the Paris Tannhäuser. The perfect variety will know that they’re also to be found in the overture and carnival scene of Das Liebesverbot (The Ban on Love). Would that the rest of Wagner’s second opera were as wacky, but it’s still something to find the 21-year-old composer grappling with the German equivalent of an opéra comique or a dramma giocoso.

It would spoil the surprise to say what exactly emerges when – after a breathless build-up and a few glimpses of a seductive silhouette – the living doll Olympia finally makes her entrance in Act One of English Touring Opera’s new production of Offenbach’s The Tales of Hoffmann. Let’s just say that it’s startling, beautiful, strange and ever-so-slightly spooky. In a word: uncanny. In an even better word: Hoffmannesque. The audience gasped, and James Bonas’s production found its stride.

It’s Orfeo in the original Italian: not Monteverdi’s, nor yet another version of Gluck’s Orfeo ed Euridice, but a cornucopia of invention in the shape of the first Italian opera for the French court. When the Ensemble Correspondances presented its very much slimmed down version of a 13-hour “Ballet Royal de la nuit” for Louis XIV at the Chaise-Dieu Festival this August, it was the fragments of ravishing music from Luigi Rossi’s work which stood out among the six featured composers.

Kurt Cobain’s “Smells like Teen Spirit’ cued a realistic song and drink routine for Chekhov’s Three Sisters in a hit-and-miss update by director Benedict Andrews. This one, with a Puccini soundtrack unsupportively conducted by Xian Zhang, smells more like routine spirit with a couple of jolts along the way, a sludgy requiem for drug-fuelled twenty-somethings.

If nothing else, Stephen Sondheim’s best-known work will put you off pies; it will put you off barbers; and it may in the end put you off Sondheim. Popular though it seems to be with planners and programmers, it’s sluggish and heavy going as drama and thin gruel as music: three hours of clever musical patter, repetitive orchestral mechanisms, and slinky variations on the “Dies irae”. When you’ve seen one throat-slitting, one human pie-bake, you’ve seen them all.

Opera North have an excellent track record when it comes to staging musicals, and Jo Davies’s Kiss Me, Kate is among the best things they’ve done. Cole Porter’s score and lyrics are flawless, though the book (by husband and wife team Bella and Samuel Spewick) is a little clunky. Act 1 is overlong, and the show’s close is a tad perfunctory. But what an erudite, wise piece.