Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:2/4
K:D
['f/f/f/f/ fe (3e/f/e/ d A2 c/c/c/c/', 'fe dF (3B/c/B/ A A2 GE c>c']  
X:1
L:1/8
M:2/4
K:D
 A | f/f/f/f/ fe | (3e/f/e/ d A2 | c/c/c/c/ cB | (3B/c/B/ A F2 | f/f/f/f/ fe | (3e/f/e/ d A2 | 
 c/c/c/c/ cf/e/ | df d :: f | fe dF | (3B/c/B/ A A2 | GE c>c | BA f>f | fe dF | (3B/c/B/ A A2 | 
 GE c>c | df d :|  