Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/4
M:3/4
K:G
['B B']  
X:1
L:1/4
M:3/4
K:G
 D | G3 | A G A/A/ | B B d | G G G | c c c | B B B | A3- | A z A | c c c/c/ | e c3/2 c/ | B B B | 
 d B G | A3 | c A F | G3- | G z |]  