Create a musical piece with the provided alphabetic notation system and theme.
X:1
L:1/8
M:2/4
K:G
['GABc d/e/d/^c/ dB GABc', '[gd]2 [fc]aAf (g/a/).g/.f/ gg caAf g2']  
X:1
L:1/8
M:2/4
K:G
 GABc | d/e/d/^c/ dB | GABc | d2 [gd]2 :: [fc]aAf | (g/a/).g/.f/ gg | caAf | g2 [gd]2 :|  