Bernstein refers to the "combinatorial nature" of some poetry
"By combinatorial, I'm referring to Waldrop's discussion of the modular style of Lyn Hejinian's My Life and other works, where various units--sentences, phrases, words--are permuted or, more important, permutable; the sort of disjunctive collage or serial ordering that characterizes much recent poetry"
see Rosmarie Waldrop's "Chinese Windmills Turn Horizontally," a conference talk published in Temblor 10 (1989)