According to the present state of the study of National Harmony, this chapter will reclassify the chord structure of Pentatonic Mode Harmony into basic chord structure and complicated chord structure.

• 通过对几部和声论著的比较分析，本文在这一章将五声性调式和声的和弦结构重新划分为基本结构与复杂结构两大类，并结合新的和弦标记方法和大量的谱例进行说明。