Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/4
M:4/4
K:G
['B B', 'c d']  
X:1
L:1/4
M:4/4
K:G
 B3/2 c/ | d d d/e/d/c/ | B B B A | G2 D G | B A A A/B/ | c c c/d/c/B/ | A A A G | F A e d | 
 B2 B c | d d d/e/d/c/ | B B B A | G B d g | e2 d e/d/ | d3 e/f/ | g/f/g/f/ e f/g/ | a/g/f/e/ d d | 
 e f g2 |: g f/e/ d e | c d B c | d e/d/ c B | A4 | g f/e/ d e | c d B c | d d e f | g4 :|  