Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/4
M:3/4
K:Amin
['f e2']  
X:1
L:1/4
M:3/4
K:Amin
 E | c c3/2 B/ | A A a | e e3/2 d/ | c2 A | d d3/2 d/ | g a g | f e2 | z2 e | e ^g b | a =g e | 
 d e f | e2 c | B A3/2 B/ | c e c | B A2 |]  