Musical Notation is a way to keep track of how the music will be played, it contains the rhythm and the pitches of it. Originally it was used as a way to plot out how the music would go for monks and remind them how it would go, as music was originally meant to be taught and not written to learn. Pieces that have been influenced by musical notation was Beethoven Symphony No. 5 as it has been preserved and passed down for people to play. I used this technology when i was learning to play violin, and piano.
I agree with you and this is a great example you used! Also, I realized that musical notation was used to to further the goals of christian worship and sacred music The sounds were designed to inspire the faithful to worship.