1, 3 b’s means flats, corresponding to 7362514

3 b’s mean flats of 7, 3, and 6

2, One beat is 5

3, two beats are treble 2

4, treble 1

5, two beats are 6

6, bass 7

7, 3-beat value

8, play the continuity point

9, the same as No. 8

10, bE It’s b3. In the whole song, b3 is regarded as dol