Compose a piece of music based on the provided motif and adhering to the outlined musical structure.
X:1
L:1/8
M:6/8
K:G
['BcB ded gag fed', 'G3 AFA BGB cAG FED BGB cAc'  
X:1
L:1/8
M:6/8
K:G
|: BcB ded | gag fed | efg dcB | ABG FED | BcB ded | gag fed | eag fdf | g3 G3 :: AFA BGB | 
 cAG FED | BGB cAc | dgf edc | BcB ded | gag fed | eag fdf | g3 G3 :|  