Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
['', 'cAG G3', 'cAG GBd g3 gag g2 f dgg']  
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
 d |: cAG G3 | AAA GFG | cAG GFG | (3ABc A FGA | cAG G3 | (3ABA A GGG | fdd edd | fdd cAG :| 
 GBd g3 | gag g2 f | dgg gfg | a2 g fga | bag agf | gfe f2 e | dcA d2 e | (3gfe d cAG :|  