Human languages evolve and adapt themselves to the needs (phonetics, auditory, contextual) of the users. To what extent has been showed that Occidental music notation followed that path?
- Is it just a matter of chance that we note music as we do?
- Are reciprocals of powers of two dominant because it's easier for a performer to divide a length into a half, than into (say) a fifth? Or does it have to do with the way they get arranged in a listener's mind?
- We may group notes hierarchically for perceptual reasons, but do these reasons come from the visual skills of the interpreter, or from the cortical organization that listens to it?
- Are there neuroscientific evidences that our music notation has fitted to the way we play or perceive?
Update (for the sake of clarification): we know how well-founded it is pitch notation in the way we perceive it, even its grounding in physics is understood. Same thing here, why do we note rhythm as we do?