Posts in Zheng
1963-65

In 1963 Zhāng Kūn (张昆), a zheng maker at the Shenyang Musical Instrument Factory, created the first functional modulated Key-Changeable zheng. Mechanisms near the head of the instrument, by the player's right hand, could change the tension of strings. Unfortunately the action also changed other aspects of the sound and not in a good way; the instrument was never mass produced. Alas, I have no photograph of it!

In 1964 or 65 Zhāng Kūn released an updated version of his modulated zheng with a smoother action. It had 22 metal strings and could shift the instrument through all 12 musical keys by shortening the length of the strings. It was dubbed Model 65 and was put into production - however the added mechanical action detuned strings more quickly than other zhengs and added significant weight. 

In that same span of time the Yingkou Manchuria Musical Instrument Factory releases three modulated instruments: First was the Dōngfāng hóng (东方红, translated as Oriental Red, or "The East is Red") in 1964. Then in 1965 came the 5-mode 35-A and the 6-mode 35-B. All three modulated pitch by changing the length of the string, bringing with them similar problems as previous zhengs. 

Image: The Model 65 key-changeable zheng from Han 2013

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1972-1974

In 1972 Zhāng Kūn's factory released another modulated zheng, this one called Model 72. It had a somewhat flatter soundboard which made it easier to play, and featured a simpler modulating mechanism.

in 1974 Yingkou Musical Instrument Factory releases another modulated zheng, this one providing buttons for the performer to press rather than levers to move as had been the case in earlier models. It was lighter than previous modulating zhengs, but was still heavier than the soon-to-be ubiquitous Dunhuang guzheng.

Image: Dr. Han's Yinkou modulated zheng. Source: Han 2013

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1972 36-String Pedal Zheng

Created in 1972 by Zhang Ziyue of the Suzhou Musical Instrument Factory of Jiangsu province, pedal actuated zhengs came onto the scene to solve the same problems as the earlier modulated zheng - and had some of the same limitations. 

This is a 36-string zheng made around that time, tuned in the western diatonic scale.

Image Source: Music Research Institute via Han 2013.

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ZhengJ BModulated, PedalComment