Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
M:4/4
K:D
['', 'd>B AF GE FE DE', '(3fga ge']  
X:1
L:1/8
M:4/4
K:D
 g2 fe |: d>B AF GE FE | DE FA d2 ef | (3gfe af ge (3dcB | Ad FA Gg f>e | d>B AF GE FE | 
 DE Fa g>f ed | (3cBA Ad (3fga ge |1 d2 dc dg fe :|2 d2 dc de fg |: a2 ag (3fga ge | 
 fd (3FGA G2 EF | G>F GE AB (3cBA | GA ce ab ag | (3fga ge (3fed AF | G>A Ba g>f ed | 
 (3cBA Ad (3fga ge |1 d2 dc defg :|2 d2 dc dg fe ||  