本文是和声的共同逻辑规律（特别是在和声学教学方面） 的研究系列之一。人类音乐实践活动在音材料的使用上，是向着复杂的、多元化的方向演进。本文认为：和声的基本材料可以从音阶材料和音程材料两个方面来认识（和声外音除外） ，并从这两个方面论述了和声材料使用的复杂化过程和表现作用，在亨德米特理论的控制下达到内在的高度统一，体现出共同的逻辑规律 This article is one of a series of studies on the common logic of harmony, especially in the area of ​​harmony teaching. The practice of human music in the use of audio materials, is moving in a complex and diversified direction. This paper argues that: The fundamental material of harmony can be understood from two aspects of scale material and interval material (except the harmony vowel), and from these two aspects, the complicated process and performance of harmonic material are discussed. Under the control of Dmitry’s theory, it reaches a high degree of unity within the community and reflects common logical rules