Compose music that abides by the dictated structure and encompass the given theme
X:1
L:1/8
M:4/4
K:D
['f2 e2', 'FAdA GBdB'  
X:1
L:1/8
M:4/4
K:D
|: a2 aa gfef | g2 f2 e2 de | f2 d2 c2 d2 | edcB A4 | a2 aa gfef | g2 f2 e2 de | f2 e2 AecA | 
 d4 d4 :: FAdA GBdB | FAdA GBdB | d2 a2 g2 f2 | edef e4 | FAdA FAdA | GBdB GBdB | d2 f2 e2 a2 | 
 d4 d4 :|  