Compose a song based on the given alphabetical pattern and musical motif.
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
['GBGB AcAc GBGB AD- D2 GBGB cAcA', '[G,G]2 BdBd cece BdBd cA- A2 BdBd']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
 GBGB AcAc | GBGB AD- D2 | GBGB cAcA | dBcA G[G,G]- [G,G]2 :: BdBd cece | BdBd cA- A2 | BdBd ecge | 
 dBcA G[G,G]- [G,G]2 :|  