Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/4
M:4/4
K:G
['D G G/A/ G B d2 B', 'd e e/d/ e g d2 B']  
X:1
L:1/4
M:4/4
K:G
 D | G G/A/ G B | d2 B G | A A/c/ B B/d/ | A A2 D | G G/A/ G B | d2 B G | A A/G/ A B | G2 G :| d | 
 e e/d/ e g | d2 B G | A A/c/ B B/d/ | A A2 d | e e/d/ e g | d2 B G | A A/G/ A B | G2 G :|  