Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/16
M:2/4
K:Dmix
['', 'd^cAB =cBcA', 'f2ed cdef']  
X:1
L:1/16
M:2/4
K:Dmix
 vfe"^Segno" |] d^cAB =cBcA | GFEG c2ce | d^cAB =cBcA | GFcE EDD2 | d^cAB =cBcA | GFEG c2ce | 
 d^cAB cBcA | GFcE EDD2 |]:[K:D] !fermata!Adde f2ed | cdef g2fe | dcde f2ed | faeg fdd2 | 
 dcde f2ed | cdef g2fg | afge fded | cdeg fdec"^Segno" |]  