The weather is perfect. Rare at a festival in this country. The sun shines. Occasional clouds pass. There’s a light breeze. Flamingods are on the Charlie Gillett stage. They are a London-based unit of primarily Bahraini origin who make psychedelic-electronic rock tinged with exotica and Middle Eastern flavour. Very WOMAD, in other words.

There’s a masterful subtlety to Philippe Herreweghe’s interpretation of Bach’s last great choral work – it shuns blazing transcendence for a sense of serene contemplation that reveals every angle of the mass’s geometrical perfection. Listening to the multiple layers of sound is rather like appreciating the shifting colours in the inlaid mother of pearl on a harpsichord – nothing dazzles, but it draws you in with its meticulous polish and understated beauty.

The concert offering at St-Martin-in-the-Fields has transformed in recent years, under Director of Music Andrew Earis. There is still a decent amount of “Four Season by Candlelight” but this tourist-bait now sits alongside some brilliant programming featuring choirs like Tenebrae, Ex Cathedra and the Monteverdi Choir.

Anyone who’d booked to hear soprano Sally Matthews or to witness the rapid progress of conductor Daniele Rustioni – the initial draw for me – could not have been disappointed in their late-stage replacements. Elizabeth Watts is as much of a national treasure among singers as Matthews, and Jader Bignamini, music director of the Detroit Symphony Orchestra, negotiated his first Barbican concert with absolute mastery.

Purple patches flourished in the first half of this admirable programme: it could hardly have been otherwise given Sheku Kanneh-Mason’s devotion to a new work in his repertoire, and the current strength of the Royal Philharmonic Orchestra under Vasily Petrenko. Even so, it was the culmination, Rachmaninov’s multifaceted “Choral Symphony” The Bells, which truly dazzled.

Brazil-born conductor Simone Menezes, known for imaginative and pioneering concert presentation, presided over a striking and illuminating programme shared by Manchester’s Kantos Chamber Choir and Manchester Camerata, with the star quality of Karen Cargill the icing on the cake.

Was it worth taking a risk on a more humbly presented St John Passion in Dublin after the best St Matthew I’m ever likely to hear (from Peter Whelan and the Irish Baroque Ensemble in St Patrick’s Cathedral)?

The annual St Matthew Passion from the Dunedin Consort is one the most reliably beautiful jewels in Edinburgh’s musical year. They do the St John Passion much less frequently; in fact, this is the first time I’ve heard them do it, maybe motivated by its tercentenary this year.

For the second year in a row the Royal Scottish National Orchestra chose to share its platform in Edinburgh’s Usher Hall with the young musicians of St Mary's Music School. As RSNO chief executive Alistair Mackie pointed out in a short opening speech, the links between the two organisations run deep, as many players in the RSNO started their musical careers at St Mary's.

“Spring Awakenings” promised as the theme of this year’s London Handel Festival began with a big if messy vernal bouquet of “Alleluia"s and “God Save the King”s. Esther, Handel's first London oratorio, seemed like an appropriately jubilant way to celebrate Laurence Cummings' 25th and final year as festival director.