The tritones are bracketed, and the derivative pentatonic scale written alongside.
三全音被括弧起来和衍生的六音阶也加在旁边.
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These may be five-tone ( pentatonic ) or six-tone ( hexatonic ) scales.
它们可以是5个乐音 ( 5声音阶 ),也可是6个乐音 ( 6声音阶 ).
英汉非文学 - 民俗
The article outlines the formation and development of a pentatonic scale in ancient China.
本文介绍了中国古代五声音阶的形成与发展.
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