Moreover, it was not until finally 1030 that an Italian Benedictine monk named Guido d'Arezzo invented a 4-line stave, making use of his hand to recall the lines. Loads of early medieval songs is often a secret. A lot of people with the interval had been illiterate, so audio was https://youtu.be/mbqCyyAD1ag?si=xUDvYeIp5tcc6RpP