Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:4/4
K:G
['G2 AG Adde =fefd dggf']  
X:1
L:1/8
M:4/4
K:G
 BC | dGBG AGEG | dGBG c2 ce | dGBG AGEG | dGBA G2 | AG | Adde =fefd | dggf g2 ag | fdd=f ecce | 
 dBcA G2 AG | Adde =fefd | dggf gbag | fdd=f ecce | dBcA G2 ||  