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 d dcd']  
X:1
L:1/8
M:6/8
K:D
"D" f2 d dcd | f2 d dcd |"A" e2 e a2 a |"D" f3 d3 | f2 d dcd | f2 d dcd |"A" e2 e a2 a | 
"D" d3 d3 ::"A" e^de a^ga |"D" f3 d2 d |"A" e^de a^ga |"D" f3 d2 z |"G" b2 g gfg |"D" a2 f fef | 
"A" e2 e a2 a |"D" d6 :|  