Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/8
M:4/4
K:C
['DC DE', 'EE AF FF']  
X:1
L:1/8
M:4/4
K:C
|: GG GA GE DE | CC EG c2 EG | Fc cF Ec cE | DC DE D4 | GG GA GE DE | CC EG c2 EG | Fc cF Ec cE |1 
 DC DE C4 :|2 DC DE C2 EF |: GE EE CE EE | GE AE GE EE | AF FF CF FF | AF cF AF EF | GE EE CE EE | 
 GE AE GE EE | AF FF AF cA |1 GE DE C2 EF :|2 GE DE C4 ||  