How can we compose better music?

I just read this excellent article about the causes of musical frission, what makes a particular moment in a piece of music strike you as just right. It would be nice to see these ideas built into an automatic composition program like Melody Generator. In the book I mentioned how a sunset can induce strong feelings through an unguided process.  I don't see any reason we couldn't make a system that generates beautiful music like the atmosphere generates beautiful sunsets.

In fact, it might be cool just to make an artificial sunset generator using a fluid simulation and the physics of light passing through clouds.  This is an image I made years ago using POV-ray and Perlin noise functions:

 I think it gets the cloud shapes about right, though the lighting needs a lot of work.

Physiological and Musico-Acoustic Correlates of the Chill Response

Martin Guhn, Alfons Hamm and Marcel Zentner

Music Perception: An Interdisciplinary Journal
Vol. 24, No. 5 (June 2007), pp. 473-484