Sean Carroll in Preposterous Universe:
Creativity is one of those things that we all admire but struggle to define or make concrete. Music provides a useful laboratory in which to examine what creativity is all about — how do people become creative, what is happening in their brains during the creative process, and what kinds of creativity does the audience actually enjoy? David Rosen and Scott Miles are both neuroscientists and musicians who have been investigating this question from the perspective of both listeners and performers. They have been performing neuroscientific experiments to understand how the brain becomes creative, and founded Secret Chord Laboratories to develop software that will predict what kinds of music people will like.
More here.