Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:6/8
K:Dmix
['f2 d ded cAB c2 d cAF', 'd3 dfa afd dfa a3 ceg gec'  
X:1
L:1/8
M:6/8
K:Dmix
|: f2 d ded | cAB c2 d | cAF GFG | A2 d efg | f2 d ded | cAB c2 d | cAF GFG | Ad^c d3 :: dfa afd | 
 dfa a3 | ceg gec | ceg g3 | fdf ece | dAB c2 d | cAF GFG | Ad^c d3 :|  