In early Greek music theory, an octave species (εἶδος τοῦ διὰ πασῶν, or σχῆμα τοῦ διὰ πασῶν) is a sequence of incomposite intervals (ditones, minor thirds, whole tones, semitones of various sizes, or quarter tones) making up a complete octave (Barbera 1984, 231–32). The concept was also important in Medieval and Renaissance music theory.
网络释义
1、希腊八度音程
PHP必备的函数集 - Powered by ww... ... mt_srand — 播下一个更好的随机数发生器种子 octdec — 八进制转换为十进制 pi — 得到圆周率值 ...