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
Q:1/8=160
M:2/2
K:G
['BGBd cBce d2 ge dBGF E2 cB', 'bg g2 dgBg']  
X:1
L:1/8
Q:1/8=160
M:2/2
K:G
 dc | BGBd cBce | d2 ge dBGF | E2 cB AGFG | A2 FE DEFA | BGBd cBce | d2 ge dBGF | E2 cB AGFG | 
 A2 EF G2 :| ga | bg g2 dgBg | bg g2 dgBg | [c'c][Aa] [Aa]2 eaca | [c'c][Aa] [Aa]2 eaca | 
 bg g2 dgBg | bg g2 dgBg | abga fgef |1 dedc B2 :|2 d2 ef g4 |]  