Jedno zdanko i to jeszcze okrojone to bardzo słabiutki kontekst niestety. Ale strzelam: między akcentem a współzależnością. Though it doesn't make any sense to me. More context could shed some more light on it.
"Eight headings are offered under which textural matters can be understood. (...) other five headings are perhaps more notable in that they deal with absolute distinctions held in balance in any one manifestation. He writes about the distinction between focus and interplay, between economy and saturation, between the thin and the dense, between the smooth and the rough, in which can be discerned the etymology of the musical term 'texture' in the physical term."