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
['dD FA', 'd f/g/ af ge fd df/g/ af']  
X:1
L:1/8
M:2/4
K:D
|: d/c/ | dD FA | dD Dd/c/ | dD FA | eE Ed/c/ | dD FA | Bg fe | d/c/B/A/ B/c/d/e/ | fd d :: f/g/ | 
 af ge | fd df/g/ | af g/f/g/a/ | be ef/g/ | a>f ge | f>d ec | d/c/B/A/ B/c/d/e/ | fd d :|  