Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/4
M:2/2
K:Gmix
['D C _D D'  
X:1
L:1/4
M:2/2
K:Gmix
|:"G" d d B3/2 d/ |"C" e c3 |"G" d d B3/2 B/ | A G3 |"G" d d B3/2 c/ |"C" e c2 e/f/ |"G" g e d B | 
 A G G z ::"G" G G D D |"C" C C"Db" _D D |"C" C C"Db" _D D |"C" C C"Db" _D D |"G" G G =D D | 
"C" C C"Db" _D D |"C" C C"Db" _D D |"C" E E"^(D)" =D D :|  