How to distinguish the first to tenth grades of guzheng?

Guzheng is a classical traditional musical instrument in China. I want to distinguish the graded tracks of guzheng. Generally speaking, there will be some differences in the speed and difficulty of playing tracks. The lower the level, the easier it is to play. The higher the level, the harder it is to fight. You can compare the names in the scoring track. Generally speaking, it is easy to distinguish quickly.