This is the Guardian.

Today, as Aber returned to the stage as avatars,

we explore how virtual reality will change the way we see gigs.

In Stratford, in East London, a vast building project has been going on.

Over two years, a steel dome designed to house 3,000 music fans has emerged on the skyline close

to the Olympic Park. On its front are four letters A, B, B, A.

I am Ludwig Anderson. I am one of two producers of Aber Voyage and I am sitting in the male dressing room of our band together with...

Me, I am Svanakisla, I am the other producer and I am also sitting in the boys dressing room in the arena because it was the only room we could find that didn't hurt people in it.

The Aber Arena has had to be specially built because there's no existing venue that could house this experimental new show.

The concert Aber Voyage brings the band back together on stage for the first time in around 40 years, though not in human form.

The avatars on stage or avatars, as they've been nicknamed, are designed to transport the audience back to their 1970s disco heyday.

People have often talked about whether you can create either people who have lived in the past or people when they were younger and we actually create Aber in their prime.

1979.

The four avatars in their sequin jumpsuits and flares have been created using motion capture technology by George Lucas' Visual Effects Company.

Even for seasoned music writers like the Guardians Alexis Petridis and Laura Snapes, the show's hard to describe.

I've seen it and I don't know how they've done it and you know it looks like watching a band on stage. I thought it was absolutely astonishing.

I don't want to sound totally down on it, I did have a good time but yeah it still, it weirded me out.

Having spent months not saying years trying to describe what this is, we've sort of ended up with that yeah you just have to come see it for yourself as our best tagline.

In terms of describing this show because obviously for the people who have seen it they've been trying not to give away too much.

A friend of mine just posted on Instagram, look all I can say is that my earring pings off and flew across three aisles while I was dancing.

That's all you need to know. That's a good one. Can we use that one on the posters?

This experiment which has cost £140 million to stage is likely to be the first of many.

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