from The American Heritage® Dictionary of the English Language, 4th Edition
- Guido d'Arezzo 990?-1050. Benedictine monk and music theorist who devised the four-line staff, thereby allowing precise musical notation.
Sorry, no etymologies found.
Gratian, the great canonist; Guido d'Arezzo, the founder of modern music; Lorenzo Monaco, the painter; Niccola Malermi, the first translator of the Bible into Italian, are all claimed as sons of this great congregation.
His attempt to reconstruct the musical scale was afterwards overshadowed by the system invented by Guido d'Arezzo, and it is therefore unnecessary to describe it in detail.
To Guido d'Arezzo is ascribed its development up to some semblance of our present system, although the claim has often been denied.