Create a musical piece with the provided alphabetic notation system and theme.
X:1
L:1/8
M:2/4
K:C
['B/c/ BA G2 G2 Ac |1 B2']  
X:1
L:1/8
M:2/4
K:C
 B/c/ | BA G2 | G2 Ac |1 B2 A :|2 B2 A2 :: B2 BA | AG AB/c/ |1 BA BG :|2 BA G :|  