Create a composition based on the provided motif, following the specified musical structure.
X:1
L:1/16
M:2/4
K:D
['z g fdec', 'F<D z D D2F2 A2>c2 BEBd cA'  
X:1
L:1/16
M:2/4
K:D
 z g | fdec d2(Ac) | BEBd cA z g | fdec d2(AG) | FDEG F<D :: z D | D2F2 A2>c2 | BEBd cA z g | 
 fdec d2(AG) | FDEG F<D :|  