This was the same Zhu Zaiyu who discovered the system of tuning known as equal temperament, a discovery made simultaneously by Simon Stevin (1548–1620) in Europe.
Acesta a fost același Zhu Zaiyu care a descoperit sistemul de tonuri cunoscute sub numele de temperament egal, o descoperire făcută simultan cu Simon Stevin (1548-1620) în Europa.