Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:2/2
K:C
['G C2 Gc EcGE c2 ec dDDB', 'FAFc ECFE DG,G,F |1 ECEG AFAc BdGf']  
X:1
L:1/8
M:2/2
K:C
 G | C2 Gc EcGE | c2 ec dDDB |1 c2 AF EGCE | FDG,G ECC :|2 c2 Ac GcEc | defd ecc |: G | ECEG FAFc | 
 ECFE DG,G,F |1 ECEG AFAc | BdGf ecc :|2 EGFA G_Bac | Bagf ecc ||  