Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:3/4
K:D
['cB/c/ d2 e>f gf/e/ f2 B>c d>f', 'af/g/ a2 e>f ga/g/ f2 B>c d>f'  
X:1
L:1/8
M:3/4
K:D
|: A>d cB/c/ d2 | e>f gf/e/ f2 | B>c d>f e>d | c>B A>^G AA, | Ad cB/c/ d2 | e>f gf/e/ f2 | 
 B>c d>f e>d | cB/c/ d2 d2 :: Aa af/g/ a2 | e>f ga/g/ f2 | B>c d>f e>d | c>B A>^G AA, | 
 A,a af/g/ a2 | e>f ga/g/ f2 | B>c d>f e>d | cB/c/ d2 d2 :|  