We thought the notation system was intriguing!
Instead of staffs and notes as we would draw them, they use a cipher notation.
The numbers indicate the note to be played (1 for A, 2 for B, etc.) Dots indicate higher or lower octaves, dashes and apostrophes are for timing.
Makes me wonder what the heavenly notation will look like...
"And they sang a new song, saying, 'Worthy are You to take the book and to break its seals; for You were slain, and purchased for God with Your blood men from every tribe and tongue and people and nation!'"