Benjamin Britten's musical mystery tour is still bringing young communities together to work with professionals at the highest level 61 years on from its premiere in a Suffolk church, and Lyndsey Turner's sweet production at Stratford must have been as much fun to be in as any. But Britten also had special concerns about communication, speaking eloquently about a "magic triangle" of three equal points - the work, the performers and the audience.

The festival Summer Music in City Churches is in only its second year, filling a gap left by the demise of the long-running City of London Festival.

The composition course founded more than 25 years ago at Snape by composers Oliver Knussen and Colin Matthews is in full swing. The scene is the Britten Studio at Snape Maltings on the Suffolk coast. Like Colin, Olly's connections to Aldeburgh and Snape are deep and long lasting, including his Artistic Directorship of the Festival.

“For I have found Demetrius like a jewel. Mine own, and not mine own.” Mine own and not mine own. This idea of transfiguration, of things familiar but somehow altered – is the spark that animates both Shakespeare’s A Midsummer Night’s Dream and Britten’s adaptation. Uncanny, Freud would have called it. There may be magic and naughty sprites, laughter and happy endings, but this is no fairy story. You only have to listen to those slithering glissandi in the cellos at the start of Britten’s opera to know that all is not wholesome in this particular garden.

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.

It speaks vivid volumes for the superb health of our music colleges that the Guildhall School tackles every aspect of Britten's long and layered Shakespeare adaptation with total confidence.

As the January chill began to bite around the Barbican, Sir Mark Elder and the Britten Sinfonia summoned memories of spring and summer – but of sunny seasons overshadowed by the electric crackle of storms. On the face of it, they offered us a pleasing, even serene, pastoral spread to mitigate the chill outside.

Christmas on Sugarloaf Mountain Apollo’s Fire/Jeannette Sorrell (Avie)

We’re not good at lack these days. Just look at the concert hall, where increasingly you turn up to find not just an orchestra and soloists but a giant screen. Videos, projections, live speakers, "virtual choirs"; if there’s so much as a chink of an opening in the music, you can bet that someone will try and fill it. It seems to come from a place of generosity, a desire to reach out, to supplement, to amplify, to explain, just in case we didn’t feel or see or understand before. But it’s also a gesture that takes away our agency as an audience, turns us spongy, limp as listeners.

First it was the soft acoustic guitar playing, which on three occasions to three very different audiences won a silence so intense it was almost deafening. Then the loud electric, first heard in Anstruther's Dreel Halls as part of the 2017 East Neuk Festival; the ear-plugs we were given at the door proved unnecessary – just – but the shock of Julia Wolfe's LAD, transferred from nine bagpipes to Sean Shibe live alongside eight recorded selves, was massive.