When was the first recorded usage of a musical score?

Question

Music is quite universal in the sense that you can hand a musician almost anywhere in the world a piece of sheet music and they will be able to understand it. I've been wondering this for a while now; **when was the first recorded use of the musical score we use today**?

Answer 1

I think music notation is associated with the name Guido d'Arezzo, a 10th Century monk, who suggested the use of lines to indicate specific pitches. He used four lines; later increased to the 5 we use today. Guido did not specify ways to indicate rhythms; that work was done later on in the late Middle Ages. See the Wikipedia article on "Notre Dame School"

Now, I know that evidence exists of a form of notation used in Greece in centuries B.C. Google around about that.