Generate a composition that blends the designated melodic theme with the particular alphabetical naming of the musical pattern.
X:1
L:1/8
M:2/4
K:G
['D2 G2 BG A2 cA BdcB A2']  
X:1
L:1/8
M:2/4
K:G
 D2 | G2 BG | A2 cA | BdcB | A2 D2 | G2 BG | A2 cA | BdcB | A2 z B | ccec | BdBG | AcAF | GBdB | 
 ccec | BdBG | AcAA | G2 |]  