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 FG', 'dB B2 cA A2']  
X:1
L:1/8
M:4/4
K:D
 d2 FG AFAF | d2 FG A3 d | BAGF E2 ef | gfge dcBA | d2 FG AFAF | d2 FG A3 d | BAGF E2 ef | 
 gedc d4 || f2 df dfdf | e2 ce cece | d2 Bd BdBd | edcB A4 | dB B2 cA A2 | dB B2 cA A2 | 
 dcdA FAFD | A2 A2 A2 z2 ||  