Compose music that adheres to the provided musical structure and theme.
X:1
L:1/4
Q:1/2=100
M:4/4
K:G
['d g', 'B A'  
X:1
L:1/4
Q:1/2=100
M:4/4
K:G
 B3/2 c/ d g | d c B A | B G B d | A F E D | B3/2 ^c/ d g | f g a b | a f g e | d2 D2 :: 
 A3/2 B/ c e | d c B A | B G B c | d =F E D | g f g d | e3/2 f/ g B | A G A F | G2 G,2 :|  