Create a musical composition following the given alphabetical pattern and incorporating the provided motif.
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
['B G2', 'c B']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
 b | a d2 c | B G2 D | GB A/B/c/A/ | B G2 d | e c2 e | d B2 d | gd cB | B2 A :| G | F A2 c | 
 B G2 c | B d2 =f | e c2 B | A a2 g | f2 gc | BG AF | G2 G :|  