A Study On Set Of Bells Tonic Train Of Western Zhou Dynasty And Eastern Zhou Dynasty

The dissertation thinks that the Western Zhou Dynasty set of bells tonic train is installed by the equal parts' theory on a string, and this kind of mathematical logic comes from Shang Dynasty and goes on up the Spring and Autumn period early phase. In 9-piece series of installation patterns which, with the Niu bell's emergence, utilizes to set of bells of Eastern Zhou Dynasty, five tone which were ranked by a sequence of zhi-yu-gong-shang-jiao, were presented in zheng gu tonic train of set of bells all the time. It should be pentatonic scale that touches with strings' number of Jun Zhong that excavated from Zeng Houyi tomb.The analysis demonstrates that five strings' pitch corresponding to the pentatonic scale originates to synthesis of three kind of the equal parts' theory on a string in the Western Zhou Dynasty. This alteration of tonic train installation causes the set of bells melody performances strengthen further. In the wake of the Bian Sheng being arranged into Zheng Gu tonic train of set of bells, and Ce Gu tone being united from many tones to two tones, set of bells tonic train has been achieving a ideal gradually which can change Gong tone and can tune.By means of research from set of bells tonic train to relationship of bells and strings, we can know real facts which adjusting bell' pitch can be finished inside the bell, but predefining bells' pitch must get from string. A intently relationship is always existed between set of bells and strings when set of bells is made.