Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:4/4
K:G
['dB GB', 'Bd c2 ec B2 dB A2 AB']  
X:1
L:1/8
M:4/4
K:G
|: G2 GB dB GB | cB ce dB GB | c2 ec B2 dB | A2 AB cB AB | G2 GB dB GB | cB ce d2 d2 ef | 
 gf ge dc BA |1 B2 G2 G2 D2 :|2 B2 G2 G2 d2 |: gd Bd ed Bd | gd Bd ed Bd | c2 ec B2 dB | 
 A2 AB cB AB | G2 GB dB GB | cB ce d2 (3def | gf ge dc BA |1 B2 G2 G2 d2 :|  