Design a music composition that employs the provided motif and follows the predetermined musical form.
X:1
L:1/8
M:12/8
K:D
['A2 a aga', 'c2 A cee'  
X:1
L:1/8
M:12/8
K:D
 A2 a aga A2 g gfg | A2 a aga efg efg | A2 a aga A2 g gfe | f/g/af gfe d3 d3 | A2 a aga A2 g gfg | 
 A2 a aga efg efg | agf gfe fed edc | BAB gfe d3 d3 |: c2 A cee dff cee | c2 A cee dcd fed | 
 cAA cec dfd cec | BAB gfe d3 d3 :|  