Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/8
M:4/4
K:G
['DG, B,G,', 'EF GE']  
X:1
L:1/8
M:4/4
K:G
 DG, B,G, DG, B,2 | DG, B,G, B,D DG | DG, B,G, DG, B,2 | CA, B,G, B,E EG :: EF GE DG, B,2 | 
 EF GE B,D DG | EF GE DG, B,2 | CA, B,G, B,E EG | EF GE DG, B,2 | EF GE FG AF | BF GE DG B,2 | 
 CA, B,G, B,E EG :|  