Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:2/4
K:D
['f2 f>e dB', 'fd ed fd ed/e/ fa af'  
X:1
L:1/8
M:2/4
K:D
|: f2 f>e | dB Bd/B/ | Ad d/c/d/e/ | fe ea | f2 f>e | dB Bd | Aa af | ed d>e :: fd ed | fd ed/e/ | 
 fa af | ed e>e | fd ed | fd ed/e/ | fa af |1 ed d>e :|2 ed d2 ||  