Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
M:4/4
K:Dmix
['A2 GA', 'efge afge'  
X:1
L:1/8
M:4/4
K:Dmix
 dc | A2 GA cAAG | Adde fdec | A2 GA c2 Ac | d2 ed cAdc | A2 GA cAAG | Adde f3 g | afge fde^c | 
 dfed cA :| Af | efgf edcd | efge c3 d | efge afge | d2 ed cAAf | efge afge | fde^c defg | 
 afge fde^c | dfed cA :|  