Generate a composition that blends the designated melodic theme with the particular alphabetical naming of the musical pattern.
X:1
L:1/8
M:4/4
K:C
['DGG BAB', 'def gag fed']  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:G] .abc DGG BAB | cAG FGA | DGG BAB | cAF G2 G | DGG BAB | cAG FGA | fed f2 d | 
 cAF G2 z :: def gag | fed g2 B | def gag | fed cAF | def gag | fed g2 d | fed f2 d | cAF G2 z :|  