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
To me music can be as a catalyst, which opens my mind, which silences thought and all wanting and in the openess it can afford, and in what rushes in, there is a taste sometimes of the essence of our existence. Words here are nothing but a clumsy translation, hypostasising a myriad of emotions of all hues, images and flashes of insight, which come and go. What remains often however, is a deep gratefulness of simply being alive. Music (and rythm )touch me more, than anything else ever could. I've had this since earliest childhood and it has never been otherwise. When someone very close to me died and I was raging in anger and despair, in the night after she died, I dreamt that I myself was dead and in some "other place", where I suddenly met Bach and we both played four handed on an organ. We made the most swinging and beautiful Jazz I had ever heard in my life, before or afterwards, dreaming or not, and when I woke up, I was still sad and bereaved but calm in my loss. The rage was gone and never came back.... Music...my questions still stand.
Music, to soothe the savage beast.

What is the beast?

When the beast is gone, the white dove flies skyward in silence, a halo of Light all around.

What is the purpose of Music?

What did you feel when you just read what detlof wrote, what bach wrote - both in words/notes - now into your mind...

Maybe the question is not what music brings "in", but once there, in our minds, what leaves?

If so, when that leaves, what remains?
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Detlof, interestingly enough, according to a piece recently out (see it here), Glenn Gould was interviewed very late in his life (according to the interviewer, conducted in his usual summer wear, "two sweaters, a woolen shirt, scarf, gloves, a long black coat, and a slouch hat" - reminds me of how you mentioned you saw him once in Austria) and he had something similar to say:

"I believe that the justification of art is the internal combustion it ignites in the hearts of men and not its shallow, externalized, public manifestations. The purpose of art is not the release of a momentary ejection of adrenaline but rather the gradual, lifelong construction of a state of wonder and serenity."

As well as being in line with your most recent comment above, I think it works remarkably well as an answer to the second part of your original question of "What is music and what does it do to us?" And if one accepts it as it is, it may become less important to answer the first part of the question.
Travis