Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/4
M:4/4
K:G
['d2 c2 _B A/G/ A2']  
X:1
L:1/4
M:4/4
K:G
 G | _B2 B2 | c2 c2 | d2 d2 | d2 z e | =f3 e | d2 c2 | _B A/G/ A2 | G2 z G | A2 d2 | d c _B A | 
 G3 =F/E/ | D2 z _B | =f3 _e | d2 c2 | _B A/G/ A2 | G3 |]  