Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
M:2/4
K:D
['fa fd']  
X:1
L:1/8
M:2/4
K:D
"D" d2- dg |"D" fa fd |"A7" A2- Ad |"A7" ce cA |"D" d2- dg |"D" fa fd |"A7" eg ec |"D" d2 d2 :: 
"D" fa fd |"D" fa ag/f/ |"A7" eg ec |"A7" eg gf/e/ |"D" fa fd |"D" fa ag/f/ |"A7" eg ec | 
"D" d2 d2 :|  