yellow bell

Chinese music

Also known as: huangzhong

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Last updated

July 15, 2026

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The "yellow bell" (huangzhong) is a foundational concept in ancient Chinese music theory, representing the primary pitch in a 12-tone system. This system was developed using bamboo pipes (lü) and was the world's earliest known tonal system with specific pitches and intervals. The length of the yellow bell pipe also served as a standard unit of measurement for length and weight, linking music to practical applications.1

The 12-tone system was generated through mathematical relationships, similar to the Greek Pythagorean system, where pipes of specific lengths produced pitches an octave apart or a fifth higher. This system allowed for modulation and the creation of different scales, as evidenced by the discovery of ancient tuned bells that produced multiple pitches.1

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Chinese music
Tonal system and its theoretical rationalization
…produces a basic pitch called yellow bell (huangzhong). This concept is of special interest because it is the world’s oldest information on a tonal system concerned with very specific pitches as well as the intervals between them. The precise number of vibrations per second that created the yellow bell pitch…
Read More
…produces a basic pitch called yellow bell (huangzhong). This concept is of special interest because it is the world’s oldest information on a tonal system concerned with very specific pitches as well as the intervals between them. The precise number of vibrations per second that created the yellow bell pitch…
Read More