Guqin spectrum
Guqin is used to record music scores music books, also known as Guqin means spectrum. By the 1960s, Ch'eng Qixi had discovered that more than 130 piano films had been published, containing more than 3360 piano pieces, many of which were lost in the Ming dynasty, and many of the works that had been handed down had been played for hundreds of years. There are more than 150 existing guqin spectrum, including more than 3,000 guqin music. ...