Bjorn Ulvaeus

It could be seen as narcissistic to have your own museum, but for me, it's such a long time ago - I have perspective. That young man in the funny clothes - he's almost a stranger, so I can tell his story.

Mostly, in song writing, my experience is that there isn't so much inspiration as hard work. You sit there for hours, days and weeks with a guitar and piano until something good comes. But the urge to write is something you have to have. A conviction, an ambition to write and never stop until you think, 'This is the best I can do.'

It's hard to shape glass. It took me years of practice, and as a result, I've never gotten bored with it. It's difficult. Every time I come into the studio, I've got some sort of new challenge. And something that I would like to learn how to do better, and the material never disappoints me.

In a way, I'm kind of a bystander looking at this phenomenon that is ABBA, which is still around, and that I thought would be finished in 1981 and forgotten. I'm amazed how this could happen, and I don't know why it happened. I'm just grateful and humble. I just sit back and enjoy.