Compose a piece of music that combines the given melodic theme with the assigned alphabetical pattern.
X:1
L:1/8
M:4/4
K:G
['G2 BG', 'd2 BG']  
X:1
L:1/8
M:4/4
K:G
 G2 BG EGDF | GABd gedB | GABG EG D2 | BGAF GFED | G2 BG EGDF | GABd gedB | G2 BG EGDG | 
 (3BAG AF GFED :| dG G2 dGBG | d2 BG AGED | d2 BG dGBG | Bdef gfge | d2 BG dGBG | (3ded BG AGEG | 
 DEGA Bdge | dBAB G3 z :|  