Simple notation refers to simple notation. There are two kinds of letter symbols and number symbols. It originated in France in the18th century and was improved by the Germans, so it became what it is today. The so-called music score generally refers to digital music score. Digital notation is based on the moving roll call method, and the seven basic levels in the scale are represented by 1, 2, 3, 4, 5, 6 and 7, and the pronunciation is do, re, mi, fa, sol, la and si, and the rest are represented by 0. The sound length name of each number is equivalent to 4 beats of the staff.
There may be some differences due to different versions and sources. If you need more specific music score information, it is recommended to find professional music books or consult professionals.