Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:2/4
K:G
['d e']  
X:1
L:1/8
M:2/4
K:G
 d d e c | d e d2 | A d c d | F G A2 | d d e c | d e d2 | A c B D | =F G A2 | d B d2 | d e d c | 
 d2 G A | c2 A G | G A G E | D4 |]  