Construct a music composition that complies with the designated structure and theme.
X:1
L:1/4
M:3/4
K:G
['g g']  
X:1
L:1/4
M:3/4
K:G
 g g a | g/f/ d g | g g a | g/f/ G B | c e c | e/g/ f d | c e c | e/c/ G B |]  