Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
M:6/8
K:G
['G/A/ B2 B BAB c3', 'z2 B/c/ d2 d e2 e d3']  
X:1
L:1/8
M:6/8
K:G
 G/A/ | B2 B BAB | c3 BcB | A2 A AGA | B3 G2 G/A/ | B2 B BAB | c3 c2 d | B2 G A2 B | G3 z2 :: 
 B/c/ | d2 d e2 e | d3 z2 B/c/ | d2 d e2 e | d3 z2 G/A/ | B2 B BAB | c3 BcB | A2 A AGA | 
 B3 G2 G/A/ | B2 B BAB | c3 z2 d | B2 G A2 B | G3 z2 :|  