Generate a composition that blends the designated melodic theme with the particular alphabetical naming of the musical pattern.
X:1
L:1/8
M:2/2
K:Gmix
['Bdgd BGGB', 'AGGA _B2 BA B2 GA _BABd cBAB', 'BGGB Acfc', 'GA _B3 d cBAB Ggg^f g3 a']  
X:1
L:1/8
M:2/2
K:Gmix
 Bdgd BGGB | Acfc AFFc | Bdgd BGGB | A2 D^F AGGc | Bdgd BGGB | Acfc AFFc | _B2 BA Bd=fd | 
 cA^FG AGGA :: _B2 BA B2 GA | _BABd cBAB | Ggga g^fga | =bga^f defd | g2 ^fa gfde | =fdc_B A=FFA | 
 Gg g2 dg=bg | ^fdcA =BGGA ::"^variations" Bdgd BGGB | Acfc AFFA | Bdgd BGGB | A2 D^F AGGA | 
 Bdgd BGGB | Acfc AFGA | _B2 BA Bg=fd | cA^FG AGGA :: _B2 BA B2 GA | _B3 d cBAB | Ggg^f g3 a | 
 =bga^f defd | g2 ^fa gfde | =fdc_B A=FFA | Gg g2 dg=bg | ^fdcA =BGGA :|  