Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:2/4
K:Ab
['', 'ee/e/ ee', 'fb d2 z2 BB/B/ BB B2']  
X:1
L:1/8
M:2/4
K:Ab
 c/d/ |:"Ab" ee/e/ ee | cE A2 | ee/e/ ee |"Eb7" dG B2 | ee/e/ ee | g2 f2 | ee/d/ cB |1 
"Ab" AA Ac/d/ :|2"Ab" AA AB/B/ |:[K:Bb]"Bb" B2 df | de/d/ cB |"F7" Ac ea | ef/e/ c2 | A2 cf | 
 ef/e/ dc |1"Bb" Bd fb | d2 z2 :|2"Bb" BB/B/ BB | B2 z2 |]  