Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
Q:1/8=200
M:2/4
K:D
['dg g/f/g/e/ dg B2 Af', 'A/d/f fa ag g/f/e A/c/e', 'D/G/B B2']  
X:1
L:1/8
Q:1/8=200
M:2/4
K:D
 dg g/f/g/e/ | dg B2 | Af f2 | Bg g2 | dg g/f/g/e/ | dg B2 | Af af | g2 g2 :: A/d/f fa | ag g/f/e | 
 A/c/e eg | gf fe/d/ | A/d/f fa | ag g/f/e | A/c/e A/c/e | d2 d2 :: D/G/B B2 | D/G/B B2 | 
 =c/B/A c/B/A | GB ed | D/G/B B2 | D/G/B B2 | =c/B/A c/B/A | G2 G2 :|  