Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/4
M:4/4
K:G
['d c']  
X:1
L:1/4
M:4/4
K:G
 d | d c d _e | =f g d3/2 f/ | _e d c _B | c2 d3/2 c/ | c c d c | _B A G A | _B c d B | A2 G |]  