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
['GFAcB G4 z2 GA Bd d2 cBAG']  
X:1
L:1/8
M:4/4
K:G
 DD | B3 AGFGA | D4 z2 FG | A3 GFAcB | G4 z2 GA | Bd d2 cBAG | E4 z GGE | D3 GFAcB | G4 z2 GA | 
 Bd d2 cBAG | E4 z GGE | D3 GFAed | B4 z2 |]  