Level 2. "Glory Days" is a song sung by BEYOND. It is written by Huang Jiaju and composed by Huang Jiaju. This song is a piano score in E major with level 2 difficulty. There are ten levels in the National Piano Grade Examination. There are three levels in the ten levels, namely beginner levels 1 to 6, intermediate levels 7 and 8, and advanced levels 9 and 10.