Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:2/2
K:G
['A3 G E2', 'eaaf g2 bg egge dega bg g2']  
X:1
L:1/8
M:2/2
K:G
 A3 G E2 DE | G2 BG dGBG | A3 G E2 D2 |1 Bdef gedB :|2 Bdef gede || g2 bg egde | g2 bg eaaf | 
 g2 bg egge | dega bg g2 | gabg egde | gabg ea a2 | bgaf gedg | e2 af gedB ||  