檢視正三和弦的原始碼

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中文名称;正三和弦

外文名称;Tonic Triad

字母;T

构成;正三和弦

正格进行;T - D - T

变格进行;T - S - T
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在大小调和声体系中，调式中由主音、下属音、属音为根音所构成的Ⅰ、Ⅳ、Ⅴ级三和弦，分别代表着[[自然]]调式基本和声材料的三个功能，是调式中最重要的三个三和弦，称之为'''正三和弦'''。主功能组用字母 T 表示，下属功能组用字母 S 表示，属功能用组字母 D 表示。在[[自然]]大调中，它们是大三和弦；在自然小调中，它们又都是小三和弦，其它各级三和弦称为副三和弦。<ref>[https://wenku.so.com/d/0cda5fedeb69fc758dcc0d988282db6c 正三和弦],360文库 , 2019年7月8日</ref>