“律”常与“音”、“音阶”相联系,通常合称为音律,它是构成律制的最基本单位。律制,是关于产生音律的方法和标准,即音阶中各个音的频率分布方式,它是音乐和音乐声学实践中的重要课题,其目的是为了解决音准的问题。世界上的诸多民族产生了多种多样的律制,如:七平均律、九平均 “Law” often associated with “tone”, “scale” is often collectively referred to as the temperament, it is the most basic unit of the formation of the law. The system of law is about the method and standard of producing the temperament, that is, the frequency distribution of each sound in the scale. It is an important issue in the practice of music and music acoustics. Its aim is to solve the problem of pitch. Many ethnic groups in the world have a variety of laws, such as the seven-mean law and nine-means