The ideas for the song started in the studio. It's not always the case that everyone's around at the same time and so maybe Freddie will come in and put an idea down, then Brian might listen to it and put some more guitar-orientated things on tape. Roger actually already had a complete song ready, and so he recorded a rough idea of that. Everyone works in a different way; for instance John is very organised and has a mathematical mind, so when he comes into the studio, he has a fairly precise idea of what he wants to do. On the other hand Freddie will often come in with absolutely nothing worked out and he'll just say, 'Give me five minutes', and maybe come up with something great. He's very good in that way. And so, over the course of a week we recorded a whole series of ideas ending up with four or five songs-worth to choose the best from. Out of that came One Vision.