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
['', 'dBA B2', 'fbb faa']  
X:1
L:1/8
M:6/8
K:D
 A |: FAA dAA | BAB dAA | FAA dfe | dBA B2 A | FAA dAA | BAB def | afe afe |1 dBA B2 A :|2 
 dBA B2 g |: fbb faa | fef deg | fbb faa | fed e2 g | fbb faa | fef def | afe afe |1 dBA B2 g :|2 
 dBA B2 A ||  