I have a facility for writing music, but I don't want to know anything particularly technical - like what the chords are called. Even in Radio Ga Ga there are some very difficult chords - I don't know what they're called, but it doesn't matter… I'm a much better guitarist than I am a keyboard player, but now I find melodically it's much easier to write on keyboard. Radio Ga Ga was a completely keyboard written song. I defy anyone to write that on the guitar because you wouldn't find the chords – they wouldn't come naturally to any guitar player I know.