Two hours' drive from Tbilisi over a beautiful mountain pass, lushly wooded on the descent, the Tsinandali Estate has been central to Georgia's wine-growing district of Kakheti since poet-prince Prince Alexander Chavchavadze produced the first bottle in 1841.

The conductor Thomas Søndergård turned 50 on Friday.

Since time immemorial the Edinburgh International Festival has started with a juicy choral epic designed to show off the Festival Chorus and the opulent Usher Hall. So this performance of Mahler’s Second Symphony would normally have been billed as the opening concert. But the forces of democratisation and outreach have been at work.

It’s a curiosity of music that a performance can occasionally be better – more persuasive and impressive – than the work itself. Even Britten’s most devoted advocates would find it hard to rank the Piano Concerto among his masterpieces. In his account at the BBC Proms last night, however, Leif Ove Andsnes carved out a niche for the piece as a confident yet quizzical response to the genre, standing diffidently to one side.

As end-of-term concerts go, Mahler’s Eighth Symphony is a biggie. In fact it’s hard to imagine any place of secondary education where they would even contemplate it.

Mahler: Symphony No 10, completed and arranged for chamber orchestra by Michelle Casteletti Lapland Chamber Orchestra/John Storgårds (BIS)

Charismatic, full of vital elan to the end, inconsistent, fitfully creative, a casually anti-semitic Conservative Catholic married to two of the greatest Jewish artists, Alma Mahler/Gropius/Werfel née Schindler can never be subject to a boring biography. A child of her fin de siècle time, torn between the need to be free and the will to inspire great figures, she was all too often gauged by the men who loved and tried to dominate her.

The BBC Philharmonic have given memorable accounts of Shostakovich’s Symphony No 4 in Manchester before – notably conducted by Günther Herbig in 2010 and by John Storgårds in 2014 – but surely none as harrowingly grim as under Mark Wigglesworth this time.

As one half of British politics convulsed into a deeper spasm of suicidal fury, it came almost as a relief to hear a great Anglo-Italian conductor lead an impassioned Roman orchestra in a massive, terrifying symphony once described by a (German) maestro as the first example of musical nihilism. Ah, but that’s the paradox of Mahler’s Sixth. His so-called “Tragic” symphony – though he disavowed that label for the epic, 85-minute work he premiered in 1906 – might amount to an overpowering expression of grief, rage, and despair at the cruelty of fate.

Mahler: Symphony No 7 Budapest Festival Orchestra/Ivan Fischer (Channel Classics)