Shi'er lü

Set of notes used in Chinese music

Shi'er lü is a standardized gamut of twelve notes used in ancient Chinese music. It is also known, rather misleadingly, as the Chinese chromatic scale; it was only one kind of chromatic scale used in ancient Chinese music. The shi'er lü uses the same intervals as the Pythagorean scale, based on 3:2 ratios. The gamut or its subsets were used for tuning and are preserved in bells and pipes.

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