Moreover, it wasn't until 1030 that an Italian Benedictine monk named Guido d'Arezzo invented a four-line stave, using his hand to keep in mind the strains. Plenty of early medieval tunes is a thriller. Lots of individuals of the time period had been illiterate, so tunes was handed on orally, https://www.youtube.com/watch?v=mbqCyyAD1ag