Before you listen to this BBC podcast, I'd like to quickly tell you about some others.

My name's Andy Martin and I'm the editor of a team of podcast producers at the BBC in Northern Ireland.

It's a job I really love because we get to tell the stories that really matter to people here,

but which also resonate and apply to listeners around the world.

And because the team has such a diverse

range of skills and strengths, we have trained journalists, people who love digging through

archives, we've got drama and even comedy experts. We really can do those stories justice. So if

you like this podcast, head to BBC Sounds where you'll find plenty more fascinating stories

from all around the UK.

This is the BBC.

Sandy Denny, people have often commented on the peculiar qualities of your lyrics

and you're of course a songwriter as well as a singer.

I think the atmosphere you create in your songs is a very personal one.

I mean, there is magic, there is loneliness,

there's a strong feeling for nature.

You're constantly writing about rivers and fields and streams.

But your meanings are fairly obscure and hidden.

Yes, they are.

They're supposed to be.

When I write a song, I don't remember writing it.

You know, I can't understand.

I'm like a different person in my music.

...