Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:2/2
K:C
['gf/e/ a2 gf/e/ f2 ed/c/', 'c2 dfeg dfeg ed/c/ Bc D2 gf/e/'  
X:1
L:1/8
M:2/2
K:C
 gf/e/ a2 gf/e/ f2 | ed/c/ Bc d2 d2 | gf/e/ a2 gf/e/ f2 | ed/c/ dc/B/ c2 c2 :: dfeg dfeg | 
 ed/c/ Bc d2"^[sic]" D2 | gf/e/ a2 gf/e/ f2 | ed/c/ dc/B/ c2 c2 :|  