In excess of 2000 yrs back, the book Yue Ji also talked about the critical role of music in regulating life harmony and improving health; "Zuo Zhuan" recorded the famed Medical professionals in the state of Qin along with the discussion that music can reduce and deal with diseases: https://gunnerohwdc.wikicommunications.com/5054130/not_known_factual_statements_about_therapy_music_list