On March 19, 2000 (February 14, 2000 lunar calendar), the famous composer Li Huanzhi passed away in Beijing. On March 19, 2000, the famous composer and music theorist Li Huanzhi passed away in Beijing at the age of 81. Li Huanzhi founded the Central National Orchestra, and successively served as the director of the Central Committee for Song and Dance Arts, the head of the Central National Orchestra, and the vice chairperson and chairperson of the Chinese Musicians Association. His choirs "Defend the Motherland", "Ode to Youth", "We Sing in unison", "Socialism is Good", and the symphony "Spring Festival Suite" and "First Symphony" are widely circulated in our country.