Li Jia 'an's research reproduces the lost ancient musical instruments.

Mr. Li Jia 'an also devoted himself to the research and restoration of ancient musical instruments lost in China, such as Zhou Chi, Chu Chi, Zhu, and so on. 1993, he successfully improved the China ancient ceramic musical instrument "Lian" with a history of more than 7,000 years, and developed it to more than 100 varieties, which won national patents, was affirmed by art experts and society, and was praised as "the first one in China" by the news media.

In order to carry forward and inherit the national culture, Mr. Li Jia 'an has held more than 600 lectures on China ancient music culture in Peking University, Southeast University, Nanjing University, Nanjing University of Aeronautics and Astronautics, Nanjing Audit University, PLA Institute of International Relations, Jinling Library and other places. He has participated in the large-scale sacrifice exhibition in Nanjing Chaotian Palace, and served as the artistic director of Confucius Ya Orchestra in Nanjing Confucius Temple and Chiming Ancient Orchestra in Xintian, Jiangsu Province.

CCTV Channel 3, CCTV International Department, Phoenix Satellite TV Asia, German TV Sü ddeutsche Zeitung, French National TV, Jiangsu TV, Nanjing TV, China People's Broadcasting Station, Jiangsu People's Broadcasting Station Jinling Voice, Nanjing Radio Music Channel, and national, provincial and municipal newspapers and magazines have reported on Mr. Li Jiaan's artistic life many times at home and abroad.