Craft a composition using the given motif while maintaining the musical form outlined by alphabet characters.
X:1
L:1/8
Q:1/4=140
M:2/2
K:G
['g2 cBAG cAGF Ggfg e2 d2 dBAG', 'A2 c2 B2 d2', 'G4 B3 d dccB A3 B c2']  
X:1
L:1/8
Q:1/4=140
M:2/2
K:G
 g2 | cBAG cAGF | Ggfg e2 d2 | dBAG cAGF | G2 G2 G2 :: z2 | A2 c2 B2 d2 | A2 c2 B2 d2 | 
 .A.A(Ac) .B.B(Bd) | dcAF G4 :: B3 d dccB | A3 B c2 B2 | GABc defg | dcBA G4 :|  