Create a musical piece with the provided alphabetic notation system and theme.
X:1
L:1/8
M:4/4
K:Gdor
['BG GF', 'g3 a bg']  
X:1
L:1/8
M:4/4
K:Gdor
 G3 A BA GB | AF FE F2 Bc | d3 c Bc de | fe fg fd cA | (3Bcd GB (3ABc FA | BG GF GA Bc | 
 dg gf (3def cA | BG GF DF GA | B3 A GB AG | AF FE F2 Bc | d3 c Bc de | fe fg fd cA | 
 (3Bcd GB (3ABc FA | BG GF GA Bc | dg gf (3def cA | BG GF G4 || g3 a bg df | g3 b af df | 
 g3 a bg af | gd fd cB AF | (3Bcd GB (3ABc FA | BG GF GA Bc | dg gf (3def cA | BG GF G4 | 
 g3 a bg df | g3 b af df | g3 a bg af | gd fd cB AF | Gg gf gd BG | Ff fe fc AF | 
 (3Bcd GB (3ABc FA | BG GF G4 ||  