Guido of Arezzo's Micrologus (jan 1, 990 – mar 17, 1050)
Description:
Guido of Arezzo himself lived from around 990-1050. He created his Micrologus (Little Treatise) in 1030. This was an innovation at the time because it contained outlines of singing and teaching practice of Gregorian Chant. Also it had important discussion on polyphonic music. Guido of Arezzo also was the first to describe a hexachord. A hexachord is a six not series exhibited in a scale or tone row.Added to timeline:
Date:
jan 1, 990
mar 17, 1050
~ 60 years