Develop a music arrangement by incorporating the given alphabetical sequence and the provided motif.
X:1
L:1/8
M:6/8
K:D
['', 'FAD FAD', 'Add ded =cAB']  
X:1
L:1/8
M:6/8
K:D
 E |: FAD FAD | GFG EFG | FAD FAD | GED D2 E | FAD FAD | GFG EFG | fed ecA |1 GED D2 E :|2 
 GED D2 d |: Add ded | =cAB =cAG | Add ded | =cAB c2 BA | Add ded | =cAB =cde | fed ecA |1 
 GED D2 d :|  