Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:6/8
K:D
['F2 A', 'dcB AGF']  
X:1
L:1/8
M:6/8
K:D
|: F2 A A2 A | ABA FED | G2 B B2 A | B2 A Bcd | F2 A A2 A | ABA FED | dcB AGF |1 GFE D2 E :|2 
 GFE D3 |: d2 A F2 A | DFA d3 | dcB AGF | EFG ABc | d2 A F2 A | DFA d2 e | dcB AGF |1 GFE D3 :|2 
 GFE D2 E ||  