Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:6/8
K:G
['GBB BAG', 'Eee efg fdB']  
X:1
L:1/8
M:6/8
K:G
 GBB BAG | FAA AGF | GBB BAG | AGF E2 E | GBB BAG | FAA AGF | GAB ABc | AGF G2 z :: Eee efg | 
 fdB AGF | Eee efg | fdB d2 d | Eee efg | fdB AGF | GAB ABc | AGF G2 z :|  