Xiao was born in
Zhongshan County,
Guangdong to a musical family. From an early age in
Macao he experienced firsthand Western music. In 1899, he enrolled at
Guangzhou's Shihmin Junior High School (). In 1901, he studied abroad in Japan, studying pedagogy, piano, and voice. In 1906, he joined the
Tongmenghui. In 1910, he returned to China, where he achieved the degree "recommended man" (
juren 擧人) on the
imperial examination for students who studied abroad. Not long after, he studied abroad again, this time in Germany, at Königliches Konservatorium der Musik zu Leipzig (now the
University of Music and Theatre Leipzig) and
Leipzig University, where he completed the Ph.D. His doctoral thesis was "Eine geschichtliche Untersuchung über das chinesische Orchester bis zum 17. Jahrhundert (Historical Research on the Pre-Seventeenth Century Chinese Orchestra)" (1916); it was translated into Chinese only in 1990.
Hugo Riemann was his supervisor. In October 1916, he entered the philosophy department of
Berlin University where he continued research. Returning to China, in 1920, he served as the reviewing editor for the Republic of China's Ministry of Education. In 1921, he served as the director of National Beijing University's "Music Research Group." In 1922, in accordance with his recommendation, this group was formally renamed "Music Research Institute of Beijing University." He also became this institute's managing director. In 1927,
Cai Yuanpei supported him to found China's first specialized institute of higher education for music, the National College of Music. In September 1929, according to his plan it was upgraded to the National Institute for Music (in 1949 it was renamed the
Shanghai Conservatory, which it remains today). He served as the president of the institute, until his death from illness in 1940. He himself designed the "Old Music Research Revolution" curriculum (and Chinese ancient music history), and also wrote the textbooks himself. ==Works==