All happy 18th century couples are alike, it seems, and that makes for a certain placidity in Gluck's pastoral Bauci e Filomene for the (unhappy) wedding of Ferdinand, Duke of Parma and Maria Amalia, Archduchess of Austria. All unhappy couples are unhappy in different ways, especially if the marital misunderstanding takes place when you're bringing your wife back from the land of the dead.

Flirtations and fragile alliances, lies, betrayals, schemes and the ever-present promise of sex – Love Island may be back on our screens next week, but it has nothing on Handel's Agrippina. Imperial Rome is the backdrop for one of the composer’s most deliciously cynical comedies, where love is an afterthought and power is the only game in town.

What happens on the stage of Stockhausen’s first opera would fill a book – quite a bad novel – but the plot is simple enough. Michael grows up with a domineering, game-hunting father and mentally unstable mother; discovers sex; passes his exams; travels the globe and finds his calling in life as a visionary and saviour.

Mid-career, moving ever further away from composing for concert platform and church towards the stage, Berlioz found himself unsure where his take on Faust belonged. In the end he hedged his bets and titled it a "dramatic legend". Staging it as an opera, as he really wanted, requires the work of a theatrical plastic surgeon.

Leaving a revival performance of Harrison Birtwistle's The Minotaur, a friend asked Hans Werner Henze, also in the audience, that dreaded question: "what did you think?" "Very competent and extremely well performed," came the answer.

Louise Alder, lyric soprano of the moment and vivacity incarnate, had yet to be born when John Eliot Gardiner made his first recording of Handel's Semele with the Monteverdi Choir and English Baroque Soloists in 1981.

Opera North created something approaching a new art form when they performed Wagner’s Ring in "concert stagings", putting their large orchestra in full view, with singers symbolically dressed and given limited front-of-stage space, and a continuous projected screen backdrop.

This will be the latest in Opera North’s acclaimed concert stagings of large-scale works, which have previously included Wagner’s Ring cycle, Puccini’s Turandot and Strauss’s Salome.

On one level, it's about Biblically informed good and evil at sea, in both the literal and the metaphorical sense. On another, the love that dared not speak its name when Britten and E M Forster adapted Hermann Melville's novella is either repressed or (putatively) liberated. The conflicts can make for lacerating music theatre, as they did in Orpha Phelan's production for Opera North.

While Bach's and Handel's Passions have been driving thousands to contemplate suffering, mortality and grace, this elegy for black lives lost over a century ago also chimes movingly with pre-Easter offerings.