My old guitar mentor often pointed out that the silence in between the notes was as important as the notes themselves--this resolution, at least, would be the same across all cultures--

The thing that interest me most would be more psychological than physiological, though, and it has to do with the length of musical phrases--in folk music, phrases of about eight counts seem to be ubiquitous--composed music seems toprefer them as well, though uses many little tricks to stretch them out--There is a related phenomena that I am also curious about, and that is repetition that is stretched out over time in such a way that it is not perceived as repetition--