When I write music, I always pass through a process of imagining a situation on my head, so I have something to focus on, and also something to represent, because knowing what you want to represent, it's something important, because it give's you an idea of what you're going to write, for example, in the Viva la vida by Coldplay, the music represents the death of the king of france, the revolution of france! You may haven't noticed, but it does. Other examples would be that for example, the...