Compose a piece of music based on the provided motif and adhering to the outlined musical structure.
X:1
L:1/8
Q:1/4=140
M:4/4
K:G
['GFGD B,DGB AGFE D2 c2 BcdB', 'Bc dBdB'  
X:1
L:1/8
Q:1/4=140
M:4/4
K:G
|: (3DEF | GFGD B,DGB | AGFE D2 c2 | BcdB edcB | AGFE DcBA | GFGD B,DGB | AGFE D2 c2 | BcdB ecAF | 
 G2 GF G2 :: Bc | dBdB G2 cd | ecec A2 Bc | dBdB edcB | AGFE DcBA | GFGD B,DGB | AGFE D2 c2 | 
 BcdB ecAF | G2 GF G2 :|  