Develop a musical arrangement using the specified sequence in alphabetic representation and the provided motif.
X:1
L:1/8
M:6/8
K:D
['FED AFF dFF', 'fdd ecc BdB AGF']  
X:1
L:1/8
M:6/8
K:D
 (A/G/) | FDD FDD | F>GF FED | AFF dFF | E>FE DAG | FDD FDD | FGF FED | AFF dFF | D>ED D2 :: 
 (a/g/) | fdd ecc | BdB AGF | fda eca | dB^g a(a=g) | fdd ecc | BdB AGF | AFF dFF | D>ED D2 :|  