“音级集合逻辑”是美国音乐理论家——阿伦·福特于1973年在其《无调性音乐的结构》~[1]一书中所创建的和声理论体系。本文主要是从中提炼出“集合逻辑”的本质特点及其结构力两个方面来探讨,并对这两个方面的内容进行简要的评论。 “Sound Level Set Logic ” is a system of harmonic theory created by Alan Ford in 1973 by American music theorist [1]. This article mainly explores the essential features of “set logic ” and its structural forces from two aspects to explore, and the contents of these two aspects of a brief comment.