Buzzcocks had evolved far beyond the primitive proto-punk and two-note guitar solos of Spiral Scratch by the time they released their third album in 1979. A Different Kind Of Tension was a game-changer of two halves: the first side an unremarkable set of short sharp pop-punk songs.

Unfortunately three of them are penned by Steve Diggle, who is no Pete Shelley in the songwriting stakes, and most of the first eight tracks – six of them clocking in well under three minutes – are forgettable.

The second side is indeed a different kind of tension: an experimental affair with nods to the motorik rhythms of krautrock and circular guitar figures of soukous, and much more besides.

The centrepiece is the seven-minute epic I Believe, in which Shelley outlines a series of contradictory credos, none of which seem intended to be taken too seriously.

And then, just when you think the song might be winding down, he embarks on a trancelike four minutes or so of repetition as he recites, over a metronomic backing, the mournful mantra:

“There is no love in this world any more.”

It’s not punk rock as we know it but… well, it’s a whole genre of its own. And it’s brilliant.