Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
M:4/4
K:G
['cBce dB G2 c2', 'gdBd GdBd']  
X:1
L:1/8
M:4/4
K:G
|: dB | G3 B BAGB | cBce dB G2 | c2 ec B2 dB | A2 A2 gedB | G3 B dBGB | cBce dB G2 | 
 c2 (3cde gedB | A2 G2 G2 :: (3def | gdBd GdBd | gdBd GdBd | c2 ec B2 dB | A2 A2 gedB | G3 B dBGB | 
 cB (3cde dBGB | c2 (3cde gedB | A2 G2 G2 :|  