It’s flabbergasting. OK, there’s the power of the internet as a propagation tool but here’s a German band playing their first UK show to a jumping-up-and-down audience punching the air while shouting along with the chorus of “X-Ray Vision” – which, indeed, is “X-Ray Vision”. The reception is extraordinary.

It’s coming up for two years since some of us watched the first three seasons of what’s increasingly coming to seem like television’s greatest dramatic triumph. Babylon Berlin. So we might be excused for being in a bit of brainwhirl when it comes to the multiple plotlines sown early on in Season Four.

It’s dangerous to claim a sense of absolute rightness about a musical performance; that could mean no more than responding to an interpretation which happens to chime with your own subjective expectations. Yet I’m happy to stick my neck out and say that the partnership of septuagenarian pianist Elisabeth Leonskaja with the young Staatskapelle Quartet of Berlin felt absolutely right in works by Brahms that cry out in every bar for authentic musicianship (★★★★★).

In its three weeks of world-class events, Muskfest Berlin has managed to be all things to all people – like a mini-Proms distilling the aspects of top international visitors alongside home-grown excellence, and of a focus on at least one relatively unfamiliar 20th century/contemporary work per concert. The Berliners deserved the cornucopia of very special guests, but to justify my visit, I went for the local – Berlin Phiharmonic, Deutsches Symphonie-Orchester and Berlin choirs on a par with very distinguished counterparts from the UK and Georgia.

Epic-lyric magician Brahms wears a very adaptable garment for certain masterpieces: black on the outside with fur trimming, reversible to show its exquisitely wrought, variegated silk patterns on the inside.

Kuhle Wampe is a fascinating curio, a blend of documentary, social realist drama and political debate which so bothered the German authorities upon its release in 1932 that they promptly banned it. The censorship board’s justification condemned the film as one “which shakes the foundations of the state”, most pointedly in its depiction of official indifference to poverty and the search for work.

Not every musician has friends in high places in quite the way German jazz pianist and composer Julia Hülsmann does these days.

If Roman Polanski had directed Whiplash, something like this study of music’s psychological cost might have resulted. Ina Weisse’s film is more incremental and naturalistic, as violin teacher Anna (Nina Hoss) gives special attention to teenage protégé Alexander (Ilja Monti), to the jealous resentment of son Jonas (Serafin Mishiev), while nervously returning to the stage herself.

The three Canadians Richie Hawtin (Plastikman), Jason Beck (Chilly Gonzales) and Tiga Sontag (aka just Tiga, who exec produced this album) are each so laden with image and persona it is easy to forget they are musicians sometimes. Hawtin has since the early Nineties not only brought techno to mass audiences, but adorned it with all kinds of conceptual and design spectacle in arenas and galleries as much as in nighclubs. 

Has there ever been a Cabaret as dangerous as this one? Rebecca Frecknall’s disorienting take on the Kander and Ebb classic pulls you in and spits you out in a reinvention that pushes or dissolves boundaries at every twist and turn.