Create a musical piece that includes the provided motif while adhering to the necessary musical structure.
X:1
L:1/4
M:4/4
K:Emin
['B e e f g2 f', 'g/a/ b g g b'  
X:1
L:1/4
M:4/4
K:Emin
|: B | B e e f | g2 f e | a3/2 g/ f e | f3/2 g/ f/e/d/c/ | B e e f | g2 f b | a3/2 g/ f/g/ f | 
 e3 :: g/a/ | b g g b | a f f a | g e e/f/g/e/ | f ^d B g/a/ | b g g b | a3/2 g/ f/g/a/f/ | 
 g f/e/ f/g/ f | e3 :|  