Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:2/4
K:Emin
['', 'B e2 f2 g3 f gfeg f2', 'e2 dc B3 e f2 g2'  
X:1
L:1/8
M:2/4
K:Emin
 B |: e2 f2 g3 f | gfeg f2 ef | g2 fg e3 g | fede f3 B :| e2 f2 g3 g | f2 ef d4 | e2 dc B3 e | 
 f2 g2 e2 B2 | e2 dc B3 e | f2 g2 e3 ||  