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
['D/F/A/F/ A/B/c/A/ d2 ga/b/ dc/B/ A2 BG', 'D2 fd dd f/a/g/a/ ec ce a2'  
X:1
L:1/8
M:3/4
K:D
 D/F/A/F/ A/B/c/A/ d2 | ga/b/ dc/B/ A2 | BG GG B/d/c/d/ | AF FA d2 | B2 gf/e/ fe/d/ | 
 c/d/e/c/ d2 D2 :: fd dd f/a/g/a/ | ec ce a2 | fe dc BA | ^G/A/B/G/ A2 A,2 | BG GB B/d/c/d/ | 
 AF FA d2 | BA GF ED | C/D/E/C/ D2 D2 :|  