Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
['AF F/F/F', 'fd d/d/d']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
 d | AF F/F/F AFFG | F2 D/D/D ECCE | AF F/F/F AEEc | dDDC D2 D |: g | fd d/d/d g2 ga | 
 fd d/d/d e2- eg | fd d/d/d g2 ga | fdec d2 d :|  