Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/4
Q:1/8=200
M:2/2
K:G
['B G', 'c/B/ A c']  
X:1
L:1/4
Q:1/8=200
M:2/2
K:G
 B/A/ | G G/A/ B G | c A/B/ c A | B G G B | d A F D | G G/A/ B G | c c/B/ A c | B G F/G/A/F/ | 
 G G G :| d/c/ | B d d c/B/ | A c c B/A/ | G B B A/G/ | F A F D | G G/A/ B G | c c/B/ A c | 
 B G F/G/A/F/ | G G G :|  