I started getting these attacks in 2009 just as my music career was taking off. I'd be doing photo-shoots and started to feel like I was having heart attacks. Increasingly I found it difficult to step outside my flat. Things started to get better after I saw a therapist who told me I needed to make peace with my panic attacks.

The prospect of music being detachable from time and place meant that one could start to think of music as a part of one's furniture.

I got interested in the idea of music that could make itself in a sense in the mid 1960s really when I first heard composers like Terry Riley and when I first started playing with tape recorders.

Once I started working with generative music in the 1970s I was flirting with ideas of making a kind of endless music - not like a record that you'd put on which would play for a while and finish.

Music rhythms are mathematical patterns. When you hear a song and your body starts moving with it your body is doing math. The kids in their parents' garage practicing to be a band may not realize it but they're also practicing math.

I started playing piano when I was 6. And I knew that wanted to be involved in that form of expression whether it was through music or acting or dancing or painting or writing.

I think I first realized I wanted to be in country music and be an artist when I was 10. And I started dragging my parents to festivals and fairs and karaoke contests and I did that for about a year before I came to Nashville for the first time. I was 11 and I had this demo CD of me singing Dixie Chicks and Leanne Rimes songs.

I would love to continue in music with writing... but I am not the kind of person who will hang around if I start to become irrelevant. If that happens I will bow down gracefully raise my kids and have a garden. And I am going to let my hair go gray when I am older. I don't need to be blonde when I'm 60!

I felt I really wanted to back off from music completely and just work within the visual arts in some way. I started painting quite passionately at that time.

I get bored easily so I need to do a lot. I've started a record label so I get to nurture new talent and talk about music which is a passion of mine. I've written another book. And I get to come to work and do the TV show which is always really fun.