Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/4=120
M:6/8
K:D
['D F/G/AA', 'fab afd']  
X:1
L:1/8
Q:1/4=120
M:6/8
K:D
"^Lively." D | F/G/AA d2 f | eEE E2 D | F/G/AA ded | c>Bc dAF | GeG FdF | eEE E2 D | F/G/AA d2 A | 
 FDD D2 :| g | fab afd | g2 f e2 d | fab afd | afb afd | g>ab afd | g2 f e2 E | F/G/AA d2 A | 
 FDD D2 g | fab afd | g2 f e2 d | fab afd | afb afd | gab afd | gaf eag | fdf geg | fdd d2 |]  