Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/4
M:3/4
K:G
['B B']  
X:1
L:1/4
M:3/4
K:G
 G G G/A/ | B B B | d2 e | d2 B | d/d/ e d | d c B | d A/A/ A | B G/G/ G | A D D | G2 B | 
 A A/A/ A | G2 z |]  