In addition, it wasn't right until 1030 that an Italian Benedictine monk named Guido d'Arezzo invented a 4-line stave, using his hand to keep in mind the lines. Many early medieval new music can be a secret. Lots of people in the period of time were illiterate, so songs was https://youtu.be/mbqCyyAD1ag?si=xUDvYeIp5tcc6RpP