Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
Q:1/4=150
M:2/2
K:G
['dcBA G2']  
X:1
L:1/8
Q:1/4=150
M:2/2
K:G
 dcBA G2 e2 | d4 g4 | dcBA G2 B2 | A4 D4 | dcBA G2 e2 | d2 g2 f2 g2 | edcB A3 G | G8 |:  