本文论述了挂留和弦的含义、特征与构成原理,从音程数方面论证了挂留和弦的转位形式,以及留音与挂留和弦的关系,挂留和弦与和弦延伸音的关系,挂留和弦与分数和弦的关系,挂留和弦与多利亚等调式的关系等,最后论述了使用挂留和弦的条件与方法。 This paper discusses the meaning, characteristics and composition principle of hanging chords, demonstrates the transposition forms of hanging chords from the number of notes, and the relationship between phonation and hanging chords, the relationship between hanging chords and chord extension tones, Chord and fractional chord relationship, hanging strings and Dorian and other modulation of the relationship between the last discussed the use of hanging chords conditions and methods.