Sparkling Italian comic opera might have been just the tonic at this time. Trouble is, the bar was set so high recently by Wexford Festival Opera’s Le convenienze e inconvenienze teatrali, aka Viva la Mamma, that this better known, less malleable if more romantic Donizetti comedy came across as flat, one-dimensional and not very funny (I laughed out loud once; maybe I need to get out less). Which is a shame, because the singers deserved better.

Imagine a Glyndebourne season where all those promising young singers in the chorus get to be principals in a series of fringe operas. At Wexford, they already have their work cut out, though this year not so much in the three main rarities – hence the sheer joy of witnessing so many fine performances in Puccini’s Suor Angelica and Gianni Schicchi, Donizetti’s La fille du régiment and Rossini’s L’Italiana in Algeri.

Frederick Delius composed an opera called A Village Romeo and Juliet; Donizetti composed a sort of village Tristan and Isolde, but called it L’elisir d’amore – The Love Potion. The hero, Nemorino, inspired by the Tristan tale, buys an elixir off a passing quack, in the hope it will make the beautiful, capricious Adina fall for him.

Only a group of top musicians stood, or mostly sat, between a full but necessarily small house and Dr Malatesta’s Plastic Surgery Clinic in the bijou surroundings of Dun Laoghaire’s 324-seater Pavilion Theatre.

You don’t plan a production of a Donizetti opera without having top voices in mind. For what, after all, is his simplification of Schiller’s Mary Stuart but bel canto business as usual with a bit of high drama attached? Internationally celebrated Irish singers Tara Erraught and Anna Devin (Amy Ní Fhearraigh at some performances) are the royal cousins at deadly loggerheads. They don’t disappoint; nor do the rest of the cast, orchestra and chorus.

If it ain’t broke… on tour and in the Glyndebourne summer festival, Mariame Clément's production of Don Pasquale has gratified audiences for a decade now. It surely will again in Paul Higgins's spirited revival. The show returns to the Sussex house at the start of this year’s tour with the leaves about to turn but the gardens still ablaze with late-season colour.

Venetian director Damiano Michieletto’s new Royal Opera production of Donizetti’s Don Pasquale is a clever and entertaining mix of old and new. The curtain rises to reveal a skeleton of a 1960s style house - there are doors, but no walls, revealing a gleaming white vintage car parked outside.

On paper, this might seem like a revival too far, a production clearly intended as a vehicle for world-class singers being tacked on the end of the Covent Garden season, and without any big names in sight. But it turns out that Laurent Pelly’s staging, now in its fourth London return, has enough charm and substance to justify an outing with lesser names.

Divorced, beheaded, died; divorced, beheaded, survived. Anne Boleyn is number two on the list, so anyone who can remember even that much Tudor history can guess that Donizetti’s Anna Bolena is not going to end well.