Compose a piece of music that adheres to the specified alphabetical framework and includes the provided theme.
X:1
L:1/8
M:4/4
K:C
['BdB BAB', 'afd def g2']  
X:1
L:1/8
M:4/4
K:C
[M:9/8][K:G] cea[Q:1/8=300] BdB BAB g3 | BdB BAB dcA | BdB BAB g3 | gfe fed ecA :| afd def g2 b | 
 afd dfa gfe | afd def g2 a | gfe fed ecA :|  