Kathleen Battle

How many of the original songs survive intact from the slave cabins? Probably not many in their original form. Time has transformed them like light in a prism. What we hope to present is a version of those spirituals, and they speak not just to black Americans, but to people worldwide.

I bring my classical training - some of it, but not all of it - and also my background and culture, to spirituals. And I try to leave room for that unpredictable factor, where the feeling of the song is allowed to come through. The same ethos can be applied to singing Mozart, or Schubert, or Bach. It's not just about what's on the page.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.