Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
Q:1/8=180
M:2/4
K:D
['dB- Bc/B/ FB-', 'B3 f/g/ af af/a/ bf ab/a/ fede']  
X:1
L:1/8
Q:1/8=180
M:2/4
K:D
|: f/e/ | dB- Bc/B/ | FB- Bc/d/ | cA- A/B/c/d/ | e2 f>e | dB- Bc/B/ | FB- B>c | df- f/e/d/c/ | 
 B3 :: f/g/ | af af/a/ | bf ab/a/ | fede | f3 f/e/ | dB cd/c/ | FB- BB/c/ | df- f/e/d/c/ | B3 :|  