Compose a piece of music that adheres to the specified alphabetical framework and includes the provided theme.
X:1
L:1/8
Q:1/2=90
M:2/2
K:A
['cBdB AGBG A2']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:A
 cd | ecfd cBdB | AGBG A2 cd | ecag fedc | cBdB BAGF | ecfd cBdB | AGBGAafd | cBdB AGBG | 
 A2 A2 A2 ::  