Much more than 2000 decades back, the book Yue Ji also talked about the important purpose of music in regulating life harmony and enhancing health; "Zuo Zhuan" recorded the renowned Physicians on the point out of Qin and the discussion that music can prevent and take care of diseases: https://music-therapy41111.blogdeazar.com/32260900/music-therapy-instruments-things-to-know-before-you-buy