Construct a music composition that complies with the designated structure and theme.
X:1
L:1/4
M:4/4
K:D
['a2 f a d3 d e f', 'A3 e2 c e A3 A A'  
X:1
L:1/4
M:4/4
K:D
 a2 f a | d3 d | e f g a | f e/f/ d f | e2 c e | d2 B d | c B/A/ c/B/A/^G/ | A3 :: e2 c e | A3 A | 
 A g g f | e3 a | f2 g b | e2 f a | f e/d/ f/e/d/c/ | d3 :|  