Arrange a song combining the mentioned alphabetical representation of a musical pattern and the given melodic theme.
X:1
L:1/8
M:4/4
K:D
['D2 DE FAAd B2 BA', 'ag f2']  
X:1
L:1/8
M:4/4
K:D
 FE | D2 DE FAAd | B2 BA BddB | A2 AB d2 de | fedB AFEF | D2 DE FAAd | B2 BA Bdde | f2 af e2 fe | 
 dBAB d2 :| cd | e2 ef ecBA | f2 fg fdBA | g2 ga gecA | a2 ag f2 ef | g2 ga gecA | a2 ag f2 ef | 
 g2 ag f2 ed | dBAB d2 :|  