由潮州重三六、粤乐乙凡调切入的自然律位探索

An Exploration into the Natural Temperament in the Zhongsanliu-mode of Chaozhou Music and Yifan-mode of Guangdong Music

潮州重三六、粤乐乙凡调都含有中立音音位,其自然律本质有待探究。羽调式宫阶徵阶半升演变有可能形成含13倍或含11分变体。徵调式变宫、变徵半降演变有可能形成含13分或含11倍变体。同主音综合形成含中立三度、七度音位的四种变体调式。蓝调Ⅲ、Ⅶ音位与此相仿,可能具有共同的音律本质。

In both of the zhongsanliu mode of Chaozhou music and the yifan mode in Cantonese music,there is a neutral tone which needs to be further studied of its essence in natural temperament.To sharp the degrees gong and zhi of the yu-mode a half way may produce two variations of these degrees with the resultant overtones of13folds or11divisions respectively.Likewise,to flat the degrees of biangong and bianzhi of the zhi-mode a half way may produce two variations of these degrees with the resultant overtones of11divisions or13folds respectively.To parallel these two modes forms four variant modes with neutral third and neutral seventh.This structure is similar with the degrees III andⅦin Blues scale,or they may be rooted in the same temperament.