Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:2/4
K:Edor
['b>a fe', 'b>a fe'  
X:1
L:1/8
M:2/4
K:Edor
 E/F/G/A/ Be | df B2 | g>f ef | B2 B2 | b>a fe | f/g/a Be | dB AF |1 E2 B2 :|2 E2 E2 |: b>a fe | 
 f/g/a B2 | b>a fe | a2 a2 | b>a fe | f/g/a Be | dB AF |1 E2 E2 :|2 E2 B2 ||  