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
['f/e/ dA FA dd d>f ed cd', 'D e ff/f/ fd gg/g/ ge ff/f/']  
X:1
L:1/8
M:2/4
K:D
|: f/e/ | dA FA | dd d>f | ed cd | ef gf/g/ | (3agf ge | dc A>F | GB A/B/A/G/ | FD D :: e | 
 ff/f/ fd | gg/g/ ge | ff/f/ fa | gf ef/g/ | af ge | dc A>F | GB A/B/A/G/ | FD D :|  