And writing about time in music, in particular, opened up to me a world of scientific research that I had never known: In order to write credibly, I had to dig into the physics metaphors and biological responses that connect musical temporality to something larger and more fundamental about the human experience. Time, or at least our perception of its passage, is too complicated a subject to examine from either a humanistic or a scientific angle alone. Each needs the other, points inevitably toward the other.

