You can tell by all the important upper case that the Opening and Closing Ceremonies of the London 2012 Olympic Games were the shows to be seen emoting at. Emeli Sandé can make the unique boast that she performed on both bills. That’s quite a badge of honour for a musician whose debut album Our Version of Events was released only in February, and whose songwriting career has been at least as much about supplying hits to talent-show graduates.

The moody lights and the smoke make it look like Melody Gardot is emerging from the swamp, probably somewhere near New Orleans, as she begins her set singing a capella. Her walking stick and shades (the result of a bad accident in 2003) only add to the initial feeling that she is the spiritual heir, if not the actual misbegotten daughter of a figure like Dr John, the Night Tripper. As an ex-fashion student, she oozes style, no bad thing in a jazz world that often equates scruffiness with authenticity.

Bill Withers: The Complete Sussex and Columbia Albums

Kieron Tyler

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?

The last time we reviewed Krystle Warren on theartsdesk one reader responded by suggesting that it couldn’t be long before this Missouri-born singer-songwriter was as big as Beyonce (although he didn’t use that exact phrase). Yet even a 2009 performance on Later with Jools Holland didn’t have the effect it sometimes has in being the first big step up for both an artist’s sales and credibility.

Sligo Live is Europe’s most westerly music festival, and its mix of indie and traditional is unique. For four nights and days, cracking traditional players fill the town’s many excellent pubs - Kennedy’s, Foley’s, the Snug, Mchugh’s and Hardagan’s - with the headliners: Wallace Bird, Lau, accordion queen Sharon Shannon, Joan Armatrading. But one name stood out on the marquee, that of Van Morrison, coming to Sligo with the promise of a very different kind of show – “Lyrics and Poetry: Emphasis on Words”, with readings of his own work and that of Yeats.

It’s all becoming a bit “water is wet“, isn’t it, saying how brilliant Lau are. But what else to do? Their name means “natural light” in Orcadian, which seems about right, except their vaulting, endlessly innovative take on contemporary chamber folk evokes every conceivable shade of darkness, too, and all the colours in between. Last night in Edinburgh they were simply extraordinary.

It is not exactly Rock 'n' Roll Babylon, that's for sure. When Mercury Prize-winning quartet Alt-J assembled onstage at the Electric Ballroom last night it was more like a group of cool-looking choirboys gathering for practice with the vicar than music's hottest properties playing the final lap-of-honour gig of their current tour. After a modest "thank you" to the audience from guitar-cradling vocalist Joe Newman they were off and running.

The Blue Nile: A Walk Across The Rooftops, Hats

Graeme Thomson

The Blue Nile occupy a unique spot in the musical landscape. Formed in 1980 by Glasgow University graduates Paul Buchanan, Paul Joseph Moore and Robert Bell, four albums in 30 years suggests a certain neurotic creative sensibility which resulted in a pretty slim legacy but served the music well.

There’s something admirable about the way that The Civil Wars have become quietly, unassumingly massive; packing mid-sized venues the length of the UK and chalking up over 100,000 copies of their debut album sold since its March release on these shores. The double Grammy-award winning, Nashville-based duo seem genuinely appreciative of a rapturous reception, and endearingly humble despite their considerable success.