I don't think there's any "language of the brain" that isn't emotional at some root level. That is, even our most "rational states" are circumstances that evoke the feeling of rationality. I guess I agree with William James on this point; in one of his essays he called it "the sentiment of rationality."
And I think this why music can have such a powerful effect on us. As a listener, music offers the possibility of bypassing the "linguistic, rational stuff" that's laid on top of our experience (what Jim's calling the "trailing edge") and going directly to something that's more primal . . . the "leading edge"?
By the way, I've got to say that I absolutely love this forum and this thread. I often feel like a freak, walking around, thinking about these sorts of questions. That there's someone else out there grappling with these same things -- even if you come to COMPLETELY different conclusions! -- well, it's nice to know that there are others. So thank you.
Enough of that. Back to the discussion!