Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:3/4
K:D
['ed ea gf ed ef ge f2', 'fe d2 [ce]2 [Fd]2 [Ae]4 fe']  
X:1
L:1/8
M:3/4
K:D
 ed ea gf | ed ef ge | f2 e4 | fe f2 d2 | ef ga gf | e2 d4 :: fe d2 [ce]2 | [Fd]2 [Ae]4 | 
 fe d2 [ce]2 | [Fd]2 [Ae]4 | fe [Af]2 [Fd]2 | [Ee]2 f4 | ef ga gf | [Ae]2 [Fd]4 :|  