Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['GFGD B,DGB AGFE DGBd cBAG FDEF', 'G2 A2 BcdB GBdg edcB A2 A2']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
 BA | GFGD B,DGB | AGFE DGBd | cBAG FDEF | AGFE DGBA | GFGD B,DGB | AGFE DGBd | cBAG FDEF | 
 G2 G2 G2 :: A2 | BcdB GBdg | edcB A2 A2 | BdcB ADEF | AGFE DGBA | GFGD B,DGB | AGFE DGBd | 
 cBAG FDEF | G2 G2 G2 :|  