“Are you ready to do battle with us?” bellows Johan Hegg, Amon Amarth’s imposing yet cheery frontman, immediately prompting an enthusiastic roar from the packed-out Brixton crowd. “GOOOOOOD!” He’s the most genial Viking you could imagine - six-foot plus with a gigantic beard and massive hair, a drinking horn holstered on his thigh, and a huge smile plastered across his face.

If you're going to run a music festival with flair, it's not enough just to have a run of star performers who pop up for single events. The 11th Wimbledon International Music Festival can offer those – Christian Tetzlaff and Lars Vogt, for instance, were there a week ago.

“I think we all dream of simplifying our lives and reconnecting with nature,” reckons Ben Fogle, and since this was the start of the tenth series of this show, he must have struck a chord with viewers. His first subject was 24-year-old Italian woman Annalisa Vitale, who’d dropped out of university in Italy despite her obvious academic potential and set out to build a life of self-reliance. “People say I wasted my brain, but I think I saved my brain,” she reflected.

Bassist Dan Berglund was a founding member of the highly influential euro-jazz Esbjörn Svensson Trio (e.s.t.) until the accidental death of Svensson, while diving, in 2008. The first Tonbruket album appeared the following year, with Berglund joined by guitarist and multi-instrumentalist Johan Lindström, keyboardist Martin Hederos and drummer Andreas Werlin, the music stretching into prog-rock territory, some distance away from e.s.t.’s supple euro-jazz dynamics.

Swedish singer Tove Lo appeared at a time when female physical sexuality was being used as a raw, blunt weapon in pop, when porno chic reached an apex in music videos. Half a decade ago was the time of Nicki Minaj’s “Anaconda” and Miley Cyrus’s “Wrecking Ball”, thus Lo’s overt displays of sexual bravado seemed part of the same and she had big hits with songs such as “Habits (Stay High)” and “Talking Body”.  Her output since, however, has proved her sensual agenda to be more than a passing foible.

Anna Larsson's fellow Swedes can count themselves lucky that the worldwide first choice to sing Wagner's Erda and the midnight song in Mahler's Third Symphony has made so much of her Dalarna inheritance.

Who would have thought that Ari Aster could top the satanic delights of Hereditary? Yet with Midsommar, a psychedelic twist on folk horror, he has. Aster abandons the supernatural to show that it’s not things that go bump in the night that scare us, it’s other people.

The botched 1973 hostage incident which inspired the term Stockholm syndrome comes to flatly comic life here, the strange psychological phenomenon of captives falling for their captors over time being reduced to an absurd caper.

Sadness abounds in Avicii's posthumous third album. In context, even the plaintive single syllable of the title is full of pathos. It reminds of the real person, the Swede Tim Bergling who as a teenager discovered he had an unerring ability to hit the commercial sweet spot with his dance productions, and rocketed to global giga-fame.

There was a special celebratory aura to the start of Swedish city Gothenburg's first Point Festival. Earlier in the week its Symphony Orchestra's Chief Conductor, electrifying Finn Santtu-Matias Rouvali, had not only announced a renewed contract there but also been appointed to the same position with our own Philharmonia Orchestra, to succeed Esa-Pekka Salonen.