Tri-notes series

• 三音列

Tri-notes series的用法和样例：

例句

1. After careful analysis, the author finds that as for the series produced by all the 7 known Wu-yang bone-flutes, all are natural scales containing different numbers of scale steps.
   摘要经分析研究，笔者认为已知的七支舞阳骨笛，其所能奏出的音列全为包含不同音数的自然音阶。