Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
Q:1/8=160
M:4/4
K:F
['e2 f2 ed', 'e2 f2 f2']  
X:1
L:1/8
Q:1/8=160
M:4/4
K:F
 e2 | f2 ed ^cdec | d2 D4 e2 | f2 ed ^cdec | d6 e2 | f2 ed ^cdec | d2 D4 e2 | f2 ed ^cd ec | d6 :: 
 e2 | f2 f2 c2 c2 | f2 f4 f2 | F4 E4 | D4 ^C2 e2 | f2 f2 e3 e | d2 d2 ^c3 A | B2 G2 A2 ^c2 | 
 d2 d4 :|  