Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/4
M:3/4
K:G
['D2 B B3 D2']  
X:1
L:1/4
M:3/4
K:G
"G" D2 B | B3 | D2 d | d3 |"Am" c2 B | A2 G |"D" F3 |"Em" E3 |"C" E2 c | c3 |"G" D2 B | B3 | D2 G | 
"D" F2 c |"Em" E2 G |"G7" D2 z |"G" D2 B | B3 |"D" D2 c | c2 g |"Am" g2 d | c2 B |"C" e3- | e3 | 
"Am" e2 A | A2 d |"G" d2 G | G3 |"Am" A B c |"D7" B2 A |"G" G3- | G B c ||  