Craig David’s two-hour show, in two parts, receives an ecstatic response in Brighton. The audience, dominated by women in their twenties, is loudly vocal in their appreciation, apparently knowing every word to every song on his six albums. It feels as if you might jump from the balcony, where I’m seated, and surf across the shimmying capacity crowd, buoyed up solely by the rising waves of love for this man.

When a skiffle group called The Quarry Men played live in 1959, their repertoire included covers of Chuck Berry’s “Johnny B. Goode” and “Sweet Little Sixteen”. The folk-based skiffle was becoming rock. In 1960, when the same band became The Beatles, they added Berry’s “Carol” and “Little Queenie” to their set.

There comes a point in any experimental music festival when you have to accept the silliness and go with it. And at Borealis, that point comes very early.

Lula Pena is a Portuguese singer who takes fado (or "phado" as she calls it) into new directions and musical horizons. She is one of the most intense performers you are likely to hear and, with only three albums in the last 20 years, keeps a lowish profile. She inspires fierce cult-like loyalty among fans, and had sold out the adventurous Café Oto, located in hipster central, Dalston.

Albums are not meant to be heard this way. Collecting a band's output in one package inevitably obscures that what’s being heard might have been recorded and released over years. The listening time may be five or six hours, but eighteen months could have separated albums when they were originally released. Messing with time messes with reality.

By the time Buzzcocks recorded the 12 tracks heard on Time’s Up, they had played with Sex Pistols twice. They had also shared bills with The Clash, The Damned, Eater, Slaughter & The Dogs, Stinky Toys and The Vibrators.

Apocalyptica are a band that became famous for playing Metallica on cellos. And tonight they’re playing only Metallica covers because it's 20 years since they released Plays Metallica by Four Cellos, their debut album. The quartet formed at Finland’s Sibelius Academy in 1993 and the man responsible for bringing together classical cellists to play metal is Eicca Toppinen. Tonight, referring to their debut album, he admits that they were “expecting to sell 1,000 CDs”.

Julian Cope is one of pop music’s outsiders, a singer and author who began his career in the post-punk pop band The Teardrop Exolodes but whose solo career has drifted gleefully off-radar, more recently releasing albums that blend psych, Gaelic music, blues and prog rock at the rate of about one a year.

In May 1956, the Texan label Starday issued a wild rockabilly single by Thumper Jones. Its top side, the kinetic “Rock It”, was primal, uncontrolled and wild. The flip, “How Come It”, was less frenzied but still driving and infectious. Original pressings of the two-sided pounder in either its 45 or 78 form now fetch at least £200. This is not your usual rockabilly rarity though. The record’s label credited the songs to a Geo. Jones. Thumper Jones was a pseudonymous George Jones (1931–2013), who was cashing in a hip style: the only time he did so with rockabilly.

There’s scarcity value in a Tanita Tikaram gig these days. Like seeing a rare bird, you feel special for simply having been there. Last night, in a programme spanning her whole career, she made a strong case to be a songbird of unique character. Her originality is not ostentatious; it charms its way into your heart like a lullaby. Yet despite not inhabiting an obviously radical sound-world, by the end of a long and generous set, she had become compelling. She can’t be mistaken for anyone else.