Anicius Boethius (c. 480 - c. 524)
Sources
Bower, Calvin. "Boethius." Grove Music Online. 2001; Accessed 18 Feb. 2020. https://www-oxfordmusiconline-com.ezproxy.csbsju.edu/grovemusic/view/10.1093/gmo/9781561592630.001.0001/omo-9781561592630-e-0000003386.Stolba, K. Marie. The Development of Western Music : A History. Dubuque, IA: W.C. Brown, 1998.