Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:2/2
K:Emin
['', 'BcAF G2', '', 'Beef Tgfga bgaf gefd']  
X:1
L:1/8
M:2/2
K:Emin
"^A" |: d | BcAF G2 GA | B2 Ac Beed | BcAF G2 ef |1 gefd Bee :|2{a} gef^d !fermata!e2 e |]"^B" |: 
 f | Tgfga gdBd | gefd Beef | Tgfga bgaf | gefd Be"^D.C." e :|  