Assemble a piece of music following the alphabetical representation and incorporating the provided motif.
X:1
L:1/4
M:2/2
K:D
['B A']  
X:1
L:1/4
M:2/2
K:D
 A |"D" d/d/ c B A | F3 A | d/d/ c B =c |"A" ^c4 | c A B A | c A B A | A _B =B c |"D" d f d :|  