Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/4
M:3/4
K:G
['B G']  
X:1
L:1/4
M:3/4
K:G
 G/ B/ | d3/2 e/ d/ c/ | B G G | A D D | B G G/ B/ | d3/2 e/ d/ c/ | B G G | A D D | G z G | 
 A D D | B G G | A D D | B G G/ B/ | d3/2 e/ d/ c/ | B G G | A D D | G2 |]  