Develop a musical arrangement based on the stated alphabetical form and the given motif.
X:1
L:1/8
M:4/4
K:D
['d2 Ad', 'af f2']  
X:1
L:1/8
M:4/4
K:D
 fe | d2 Ad BdAB | d2 fd edBA | d2 Ad BdAd | Bdef g2 :| fg | af f2 df f2 | af f2 ge e2 | 
 af f2 dfed | Bdef g2 :|  