Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/16
Q:1/4=90
M:2/4
K:G
['G2(DG) B2(GB) d2(ed) (cB)(AG) F2(DF) A2(FA)', 'G4 D2G2 B4 B2(AB) (cB)(AG) F2A2 d4']  
X:1
L:1/16
Q:1/4=90
M:2/4
K:G
 G2(DG) B2(GB) | d2(ed) (cB)(AG) | F2(DF) A2(FA) | (Ac)(BA) G4 :: D2G2 B4 | B2(AB) (cB)(AG) | 
 F2A2 d4 | (ed)(cA) G4 :|  