Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
Q:1/4=80
M:4/4
K:Cmin
['G c>d e>d c>B G2 e>e f>^f', 'E>FG>=A B>_AG>=B c>de>^f gGG z/'  
X:1
L:1/8
Q:1/4=80
M:4/4
K:Cmin
 G | c>d e>d c>B G2 | e>e f>^f g>GG>=B | c>de>d c>BG>a | g>f ed/>=B/ cCC :| D | E>FG>=A B>_AG>=B | 
 c>de>^f gGG z/ G/8=F/8E/8D/8 | E>FG>=A B>_AG z/ a/ | g>f ed/>=B/ cCC z/ D/ | E>FG>=A B>_AG>=B | 
 c>de>^f gGG z/ E/8D/8E/8=F/8 | GEDC e>db>_a | g>f ed/>=B/ cCC ||  