music , mind , thought and emotion


There is not a society on this planet, nor probably ever has been, which is without some form of musical expression, often closely linked with rythm and dance. My question is less concentrated on the latter two however.
What I am pondering boils down to:
What is music and what does it do to us
Why do we differentiate music from random noise so clearly and yet can pick up certain samples within that noise as musical.
By listening to music, we find some perhaps interesting, some which we would call musical. What differentiates "musical music" from "ordinary music" and this again from "noise"?
In a more general sense again:
If music has impact on us, what is the nature of our receptors for it. Or better: Who, what are we, that music can do to us what it does?
What would be the nature of a system, which practically all of us would agree upon, that it imparts musicality best?
And finally, if such a sytem would exist, can this quality be measured?
detlof
Asa, I think Subaru's comment could find an easier parallel in the idea of 'harmony & "appropriate" rythm' put forth in ancient greek tragedy. There, harmony (i.e. beauty or perceived "correctness") is interactive UNLESS the forces of nature or the "cosmic rules" foresee otherwise. (We cannot overcome the natural and cosmic rules.) But we are bound/expected to distinguish beauty from its opposite (i.e. dynamic approach)... That presupposes we specifically pursue your 2nd point. Not the first, nor the basic premise.
I may have missed the point, however..:)
Greg, you made my brain think hard. Thank you. Some of what you say are things I don't know, but I will try to answer.

Yes, # 2 option above is correct. The evolutionary development of receptivity to beauty has been developing right along side the Darwinian side (active analytic cognition). When you are an amoeba you are completely focused on the exterior with a binary thought pattern that shifts only two ways (light/dark, pery/predator etc.). With modern humans, the influence of the environment on our evolution has lessened with the inverse increase in our power over matter (technology). This, in turn, leads towards a situation where humans are less prey of the environment and have space in their mind opened towards "beauty"; in the lessened instinctual thoughts towards the external a space is opened in which the dynamic arc towards receptivity towards beauty emerges.

My question would then be, when does sound become "harmony"? It only happens in the mind, ie I can't walk out my front door and point to "harmony", so what accounted for that shift in perception? What caused us to see sound as harmony (read: music). I believe my argument against a Darwinistic catalyst above still holds in the comtext of this question. What caused the primordial mind to structure sound into patterns that had meaning, apart from telling him that the leaf moving behind him was a predator? Why did he become suseptible/open/receptive to that "harmonic" meaning?

Yes, we hear music in the matrix of its structure of sound, but the "cosmic rules" that dictate that structure (a whole different discussion on what they are), do not determine meaning.

Structure does not fall from the sky; it is created by the mind. The will towards that creation is prior to the structure that is produced, regardless of a template for structure. What will manifected in us that caused us to structure sound from that focused on sound instinctually, and towards a structure that moved towrds receptivity towards "harmony"? The structure changed, yes, but that was only a symptom of a change in the orientation of the mind towards sound. The will changed. What caused that reorientation, one that had a contrary purpose from Darwinistic-engrained instincts. Didn't it have to be a "cosmic force" not accounted by Darwinism?

What is a force that moves the mind towards meaning, even as that move makes him/her less viable against the environment?

(Hint: Next answer could be that "harmony" lead towrds social cohesion in group, thus having a social Darwinistic cause. I don't agree but its a good argument...)

Detlof: what is the meaning of "harmony"? Or rather, the meaning of its experience? What was/is its purpose? Beauty and an Opening of the Heart?
"What was/is its purpose? Beauty and an Opening of the Heart?"

Asa, if you really want the answer to its purpose. E-mail me off-line.
Thanks, 6ch. Was asking detlof, but, yes, I would be interested to your answer (can it be in words...?)

OK, I will bite...

Detlof!!

Ozfly, so good start, very smart, where are you? Nothing made you think?