Arrange a song combining the mentioned alphabetical representation of a musical pattern and the given melodic theme.
X:1
L:1/4
M:3/4
K:D
['A/G/ F3/2 G/ A A', 'f e']  
X:1
L:1/4
M:3/4
K:D
|: A/G/ | F3/2 G/ A | A f e | d B B | B2 A/G/ | F3/2 G/ A | A d e | f d d | d2 :: d/e/ | f e f | 
 a f e | d B c | d2 d/e/ | f g f | e d e |"_D.C. to Allegro." f d B | B2 :|  