Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:2/4
K:D
['', 'dd B/c/d/B/ AF', 'ed/e/ fd']  
X:1
L:1/8
M:2/4
K:D
 A |: dd B/c/d/B/ | AF AF | dd B/c/d/B/ | AF ED | dd B/c/d/B/ | AF Ad/e/ | fd ec |1 d2 d2 :|2 
 d2 dd/e/ |: fd de/f/ | gf ed/e/ | fd Ad | fd/f/ a2 | fd de/f/ | gf ed/e/ | fd ec |1 d2 dd/e/ :|2 
 d2 d2 ||  