Develop musical pieces that incorporate the given motif and follow the specified structure.
X:1
L:1/8
M:2/4
K:A
['f e']  
X:1
L:1/8
M:2/4
K:A
 e2 a b | f e c B | b3 e' | c' b a2 | b f' e' d' | b d' a f | e a d B | e4 | a2 f e | b2 e'2 | 
 a f b e' | f e d B | e c' b a | e a e d | B3 A | B4 |]  