Alina Ibragimova’s solo journey (in 2015) through the peaks and abysses of Bach’s Sonatas and Partitas gave me vivid Proms memories to treasure for a lifetime. The Russian-born violinist’s Bach abounds in both majesty and tenderness, as well as a consuming fire of intensity when the music so demands. She brought something of the same quality to her performance last night of Mendelssohn’s E minor concerto at the Barbican.

What a jolting coincidence that one of the 20th century's angriest symphonic beasts should have a rare unleashing on a night of high national anxiety. Whether Vaughan Williams spewed forth his Fourth Symphony in response to darkening European clouds in 1934 or as a sublimation of sexual frustration, given his unhappy domestic life at the time, it hit us all hard last night.

So much was fresh and exciting about Michael Tilson Thomas's years as the London Symphony Orchestra's Principal Conductor (1988-1995; I don't go as far back as his debut, the 50th anniversary of which is celebrated this season).

We have John Eliot Gardiner to thank for an unconventional diptych of Czech masterpieces in the London Symphony Orchestra's current season. He had to withdraw from last night's concert - he conducts Dvořák's Cello Concerto and Suk's "Asrael" Symphony on Thursday - but his replacement, Kazushi Ono, was no second-best.

Simon Rattle has a knack for unearthing large-scale orchestral works that pack a punch. Olivier Messiaen’s Éclairs sur l’Au-Delà … (Illuminations of the Beyond …) was completed in 1991, a year before the composer’s death, and is both a reflection on mortality and a summation of his life’s work.

So the Proms ignored the Berlioz anniversary challenge to perform his Requiem and serve up four brass bands at the points of the Albert Hall compass.

As midsummer night’s dreams go, it would be hard to surpass the darkly enchanting collaboration between Sir Simon Rattle and Peter Sellars that will bring The Cunning Little Vixen to the Barbican again this evening and on Saturday. Janáček’s spellbinding vision of humans and animals caught up in the inexorable cycles of nature and time has its rough and scary side, of course. And you will probably hear and see gentler, more obviously charming, versions of the opera that in 1924 proclaimed Janáček’s late-life burst of untamed creativity.

The Barbican Hall hardly boasts the numinous acoustic of Gloucester Cathedral for which Vaughan Williams composed his Fantasia on a Theme of Thomas Tallis, but Sir Simon Rattle has long known how to build space into the architecture of what he conducts.

Nearly 17 years ago, Simon Rattle inaugurated his era at the helm of the Berlin Philharmonic with Mahler's Fifth Symphony.

It’s a fair bet that more people now know Harmonielehre as the title of the 1985 orchestral blockbuster by John Adams than the composition manual written by Schoenberg in 1922. Even the title is “typically, ironically John”, as Sir Simon Rattle remarked in a pre-concert interview introducing the YouTube film of the concert. The piece has swallowed up its object of parody.