Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/4
M:none
K:G
['G A']  
X:1
L:1/4
M:none
K:G
 G | G G A B | c2 c2 z d | e2 e d2 d | c3/2 d/e/c/ d2 z G | A d2 c c d | B3/2 A/ G2 z d | 
 c A B d2 B- | B A/G/ A2 z G | A d2 c2 d | B3/2 A/ G2 z2 c | A A G =F2 G | A2 z G | G A B c B A- | 
 A/G/=F/G/A/B/ A2 d | d B c d2 c- | c B/A/ G2 |]  