My wife Fiona is a musician and composer, and she’s giving a talk at this year’s TetZooCon on “Music for Wildlife Documentaries – A Composer’s Perspective”. (By the way, it looks like some tickets are still available: if you live near or in striking distance of London, you should definitely go! Get your tickets here.) With less than four weeks to go, she’s starting to get nervous — to feel that she doesn’t know enough about wildlife to talk to