Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/8
M:2/4
K:G
['G>FGA B3 A d>cBA A2']  
X:1
L:1/8
M:2/4
K:G
 D | G>FGA | B3 A | d>cBA | A2 GD | G>FGA | B3 A | d>cBA | A2 Gd | d2 dc | B3 B | ddcB | A2 z D | 
 G>FGA | BB c2 | B>cB>A | G3 |]  