Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:2/4
K:D
['Ad Bd/B/ AD FA GE', 'Ad fe/f/ gf']  
X:1
L:1/8
M:2/4
K:D
 Ad Bd/B/ | AD FA | GE BE | A>G FD | Ad Bd/B/ | AD FA | GE A>G | FD D2 :: Ad fe/f/ | gf ed | 
 cA eA | e>d cA | Ad fe/f/ | gf e>d | cA Bc | d2 d2 :|  