Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
['d2 ee', 'FA A2']  
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
 d2 ee | fd dc | Be ed | cA A2 | d2 ee | (fd) (dc) | (Be)dc | d2 z :: FA A2 | FA A2 | FAdf | 
 eA A2 | FA A2 | FA A2 | FAdf |"^DC" a4 :|  