Arrange a song combining the mentioned alphabetical representation of a musical pattern and the given melodic theme.
X:1
L:1/8
M:6/8
K:Gmix
['GBG GBG', 'B2 d gdB', 'AFd dAf fda', 'f ecA d2']  
X:1
L:1/8
M:6/8
K:Gmix
 c | B2 G GBG | GBG GBG | B2 G GBG | d3 ABc | B2 G GBG | GBG GBG | A2 c fcA | c3 c2 :: B | 
 B2 d gdB | def gdB | B2 d gdB | d3 ABc | B2 d gdB | def gdB | A2 c fcA | c3 c2 :: 
[M:6/8][K:D] AFd dAf | fda fdA | Bcd Adf | f3 e3 | AFd dAf | fda fdc | Bcd Aef |{f} e3 d2 :: f | 
 ecA d2 f | ecA d2 e | fdB AFd | c2 B (Bcd) | dAF GED | EFE e2 f | fed ABc | d3 D2 :|  