Compose a piece of music that adheres to the specified alphabetical framework and includes the provided theme.
X:1
L:1/8
M:6/8
K:G
['G3 BGB', 'gdc BGB']  
X:1
L:1/8
M:6/8
K:G
|: G3 BGB | AFA c2 A | G3 BGB | dcA ecA | G3 BGB | AFA c2 A | GBd d2 f | gdB cAF :: gdc BGB | 
 AFA c2 A | gdc BGB | dcA ecA | gdc BGB | AFA c2 A | GBd d2 f | gdB cAF :|  