Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/4
M:3/4
K:G
['B B']  
X:1
L:1/4
M:3/4
K:G
 G | G D B | B G d/e/ | d3/2 c/ B | B A G | G D B | B G d/e/ | d3/2 c/ B | B A e/e/ | e d G/G/ | 
 B A e/e/ | e d G/G/ | B A G/B/ | d d e/e/ | d d e/d/ | d d e | d z B/d/ | d d c | B z |]  