“…though there is a lot of language to describe music, there aren’t words for some of it. It’s a case of you know it when you hear it. Or more to the point, you know it when you don’t hear it…That final spark that takes a piece of music from being competent to being inspired, gives it that last boost so that, even from the first bars, you know this is it.”
John Varley, Rolling Thunder, p 96