Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/8
M:2/4
K:G
['[DBg]2 [DBg]2 d3 B cA GF', 'cB cA d>e dB cA GF', 'DG DG', 'cB cA d>e dB cA GF']  
X:1
L:1/8
M:2/4
K:G
|: [DBg]2 [DBg]2 | d3 B | cA GF | G/F/G/A/ GG | [DBg]2 [DBg]2 | d3 B | cA GF | G2 G2 :: cB cA | 
 d>e dB cA GF | G/F/G/A/ GB | cB cA | d>e dB | cA GF | G2 G2 :: DG DG | DG/A/ BB | DG DG | 
 DG/A/ B2 :| cB cA | d>e dB cA GF | G/F/G/A/ GB | cB cA | d>e dB | cA GF | G2 G2 ||  