So, it's a penta-- what we call a pentatonic scale.

因此，它是一个所谓的，五，我们称之为五声的音阶。

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 ).

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.

I has been playing the amusement such long time, just thought the pentatonic scale is pleasant to hear.

玩乐器这么长时间，就觉得五声音阶好听。