A和弦组
A
A(alt)
A7
AM7
Am
Am(alt)
Am7
A6
A9
Ab
Ab(alt)
Ab7
AbM
Abm
Abm(alt)
Abm7
B和弦组
B
B(alt)
B7
BM7
Bm
Bm(alt)
Bm7
Bb
Bb(alt)
Bb7
BbM7
Bbm
Bbm(alt)
Bbm7
C和弦组
C
C(alt)
C7
CM7
Cm
... ...