Develop a piece of music using the specified alphabetic notation system and the provided motif.
X:1
L:1/8
M:2/2
K:G
['GBGB AcAc GBGB AD- D2 GBGB cAcA', '[GG,]2 BdBd cece BdBd cA- A2 BdBd']  
X:1
L:1/8
M:2/2
K:G
|: GBGB AcAc | GBGB AD- D2 | GBGB cAcA | dBcA [GG,]G [GG,]2 :: BdBd cece | BdBd cA- A2 | 
 BdBd ecge | dBcA [GG,]G [GG,]2 :|  