西洋键盘的特征是半音排列不规则:有的白键间有黑键,有的白键间没有黑键。若仅以黑键来看,呈三两三两的排列,也是不规则的。 这样的键盘,只有C调是全用白键,比较单纯;C调之外,其余的调则要用到黑键,或多或少,极不规则。所以演奏起来有难调、易调之分。今天我们设想一种键盘,C调不 Western keyboard is characterized by irregular arrangement of semitones: some white keys have black keys, some white keys without black keys. If only the black key point of view, was arranged in twos and threes, it is also irregular. This keyboard, only C is the whole white key, more simple; C tone, the rest of the tone will be used to black keys, more or less, very irregular. So playing up difficult tone, easy to tune points. Today we envision a keyboard, C tone does not