自从西方音乐进入了主调风格时期 ,尤其当和声思维占据主导之后 ,音响方式便由横向为主趋向于以纵向为主。与此相应 ,为了充分肯定“主音”在大小调体系当中的轴心作用 ,一种由功能性伸张结构力度、由色彩性铺展结构广度的做法 ,也渐渐成了一种具规范性意义的“时尚”。及至后 Since the western music entered the style of the main style, especially when the harmonic thinking dominates, the audio mode tends to be mainly vertical in the horizontal direction. Correspondingly, in order to fully affirm the pivotal role of the “tonic” in the system of size and tone, a method of extending the structure by means of functionality and spreading the breadth of the structure by means of color has gradually become a normative “ fashion”. And later