When Arab Strap reunited for their 20th anniversary last October, it was expected to be a one-off tour.

Nearly 12 months later and Aidan Moffat and Malcolm Middleton are still going strong, with a show this Sunday at the Kelvingrove Bandstand – and they’re considering writing new songs too.

“We’ve talked about new material,” says Aidan.

“I worry it wouldn’t be as good as the older songs, but we’re going to write some new stuff and see what happens. I had struggled to think of any band that reformed and made a great record but Suede changed my mind, because I thought Night Thoughts [released last year] was fantastic and I really loved it.

“That made me think it’s not completely impossible to reform and make a great record. So we’ll see – it takes me years to get round to writing though, but it’s there at the back of our minds.”

The news that Arab Strap were coming back, even briefly, sparked plenty of joy when it was announced, given their status as one of Scotland’s greatest ever bands. The fact the group have carried over into this year, playing shows in America and at festivals like Primavera, is simply down to the fact that they are just enjoying the music.

Before they stepped back onstage again Aidan admitted that he was unsure how he would feel singing songs penned in his youth that are vividly centred around sex, drink and drugs, but it has been an easy adjustment to make.

“I’m singing about a different time period, and certainly a less refined version of myself, and I really enjoy it,” he explains.

“I’m almost literally re-living my youth, and I suppose people dream of that. I do change some of the words if there’s something that I feel was a wee bit too nasty, a wee bit too coarse, so I have a chance to refine the words here and there, if I can slip it in.”

Other projects are still on the go for the duo. Aidan released his final album under his L Pierre alias earlier this year, while he is currently writing songs for a record due next year with the guitarist RM Hubbert. However returning to Arab Strap has been going smoothly, aided by the fact his friendship with Malcolm is in a stronger position than when the duo called it quits in 2006.

“In a band you start off as friends, then you basically live with each other all the time and that would put a strain on any relationship,” he says.

“After we split up we took a bit of time off from each other but it turned out we were actually pals again without having the pressure of the band. Going back to it now, being older and being able to look back on it, there’s more respect. When you’re younger you’re two alpha males battling it out with each other, but you end up learning to let things go and be a bit calmer, which we are now.”

There has been plenty of change in the music business as a whole since Arab Strap first emerged, with bands increasingly struggling to keep going without having other jobs or getting income through selling their songs to adverts.

It’s something that dispirits Aidan.

“I just feel that music has become so undervalued that it becomes nothing else other than a way to sell things,” says Aidan.

“There are people who make music because they have a message they want to get across, and then there are people who want to be famous. They’ll do any advert going, sign up for any ad campaign and all that.

“Having said that, a lot of bands these days don’t have any other option, because there is no other way to make money, so it is a natural development. It is getting to the point where people can’t really afford to have a moral stance because you either want to make music or you don’t.”

A keen Twitter user, Aidan’s known for sharing with followers his love of classic pop and for his interest in American TV shows. Which brings up a silly question – would he prefer to cameo on Game of Thrones or Twin Peaks?

“I think I’m more physically suited to Game of Thrones,” he laughs.

“I would fit in well with that plump, hirsute look – I’d love to go on Twin Peaks too but I suspect the casting director would point me in the other direction.”

Arab Strap, Kelvingrove Bandstand, Sunday, £27.50, 7pm

JONATHAN GEDDES