Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
['dAAF B/B/B', 'D e fdde fdde fdaf eAAe fdde']  
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
|: d | dAAF | B/B/B Bd | dAAF | E/E/E E2 | dAAF | B/B/B Bg | fedc | d2 D :: e | fdde | fdde | 
 fdaf | eAAe | fdde | faAg | fedc | d2 D :|  