Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/4
M:4/4
K:G
['B d c e d g/a/ b', 'a d/d/']  
X:1
L:1/4
M:4/4
K:G
 B d c e | d g/a/ b g | c' b a g | f e d/e/d/c/ | B d c e | d g/a/ b g | c'/b/a/g/ f/d/e/f/ | 
 g g g2 || a d/d/ a d/d/ | c' b a/f/d/d/ | c' b a g | f e d/e/d/c/ | B d c e | d g/a/ b g | 
 c'/b/a/g/ f/d/e/f/ | g g g2 ||  