Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:6/8
K:G
['e |:S', 'gag fef g2', 'GAB dBG']  
X:1
L:1/8
M:6/8
K:G
 e |:S dBd gag | fef g2 d | BdB d2 e | dBd gag | fef g2 B | ABA c2 e :: dBG GAB | dBG dBG | 
 GAB c2 e | dBG GAB | dBG e2 A | ABA c2 e :|  