If you want a jolting snapshot of how British pop culture has changed in the last three decades, take a look at the clip below of Billy Bragg singing "Between The Wars" on Top of the Pops in 1985. Even if the old Savile-anchored singles showcase was still around, can one imagine a contemporary singer having a mainstream hit with such a political song today? It makes you want to despair.

Fairport Convention bassist and longest-serving member Dave Pegg is a genial raconteur. He is relating how he presented the band with the song “The Eynsham Poacher”, pretending it was his when really he had purloined it by taping it off someone, thus cheating them “out of £13.50 in royalties”. A light ripple of laughter rolls across this early 19th century church deep in Brighton’s Kemp Town district.

Richard Thompson has been stretching boundaries and defying expectations for almost half a century. An unassuming 63-year-old with a neat beard whose sole concession to showbiz is his jaunty black beret, though nominally a folk artist Thompson remains doggedly unaffiliated to any scene, trend or ethos.

Hawkwind: Space Ritual

One would hope that a man whose CV includes “teacher of wilderness survival” and burlesque dancer might be well equipped to bring a better than average sense of depth and drama to a set of folk songs handed down through generations via the oral tradition. Even so, Sam Lee's achievements on Ground of Its Own surpassed all expectations.

Gig-going in the winter can be a difficult business. Plummeting temperatures call for layers, thick coats and scarves - none of which are easily stowed away at your average club show. As the venue starts to fill up with similarly clad bodies the place gets sweatier and sweatier, but by the time you realise you really should have coughed up a couple of quid and the extra wait for the cloakroom you’re probably already hemmed in.

Billy Bragg recently described Jake Bugg as “a teenager with an ear for a good tune and a chip on his shoulder". He was referring to Bugg’s evocations of council estate life, which have invited comparisons to the Arctic Monkeys. Others have sneered at the youngster’s friendship with Noel Gallagher and his unashamedly retro sound. But what’s wrong with being an angry young man with a guitar? Bugg’s major influences span folk-rock written between 1965 and 1975, with a particular emphasis on the work of Donovan. On that count alone, he gets my vote.

Bon Iver’s eponymous second album is nearly a year-and-a-half old now, so its bigger, richer sound – compared to the homemade sparseness of the debut – is well established. Nevertheless, it was hard not to wonder how any band assembled by Justin Vernon would function in the hangar-like Wembley Arena. Would success claim another victim?

When The Unthanks staggered into the spotlight with their haunting and beguiling Mercury Award-nominated 2007 album The Bairns, with bracing songs about infant mortality and child abuse, they became a folk band adored by people who don’t even like folk. They were spiritual sisters to brilliant mavericks like Antony & the Johnsons or Robert Wyatt (they did an album of covers of both artists' songs) while remaining firmly rooted in their native Northumberland.

Year after year Kate Rusby, one of the undisputed stars of the British folk revival, turns out quality albums and even better live performances. Ten years ago she celebrated a decade in the business with a collection of re-recordings and unreleased material. Ten years on, she has put together a double CD that features a number of star collaborators and less well-known but equally talented friends and contains new versions of her favourite songs.