Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/16
M:2/4
K:G
['B A']  
X:1
L:1/16
M:2/4
K:G
 B2 B A B A B G | E6 B2 | A B A G F2 E B, | D8 | E2 A2 G2 F E | D E G2 B,3 B | A B A G F2 E B, | 
 D8 |]  