All right. Teacher Li Fu has been engaged in the teaching and examination research of "Musicology" and "Harmony Acoustics" for a long time, and has long been a tutor for the postgraduate entrance examination of Harmony Acoustics and Formalism. He has unique views on harmony acoustics and formalism review for postgraduate entrance examination, unique teaching style and combination of theory and practice, which is very popular among students. Harmony Acoustics (Southwest Normal University Press, 20 12 edition) is written by Li Fu, a member of China Musicians Association, a professor at the Conservatory of Music of Sichuan Normal University, and a tutor for master students.