thumb|Micrologus by Guido of Arezzo excerpt from a 12th-century manuscript.
thumb|Micrologus by Guido of Arezzo excerpt from a 12th-century manuscript.
The Micrologus is a treatise on Medieval music written by Guido of Arezzo, dating to approximately 1026. It was dedicated to Tedald, Bishop of Arezzo. This treatise outlines singing and teaching practice for Gregorian chant, and has considerable discussion of the composition of polyphonic music.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).