Craft a musical piece that incorporates the given motif and follows the outlined structure.
X:1
L:1/4
M:4/4
K:G
['B A G', 'd d B B A/B/ c/A/'  
X:1
L:1/4
M:4/4
K:G
 G A B B | c B A G | B B A G | A2 A2 | G A B B | c B A G | B B A G | G F G2 :: d d B B | 
 A/B/ c/A/ B c | d d B B | A/B/ c/A/ B2 :|  