Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/4
Q:1/2=100
M:2/2
K:G
['G/A/ B2 B3/2 A/ G E E3/2', 'G/A/ B']  
X:1
L:1/4
Q:1/2=100
M:2/2
K:G
 G/A/ | B2 B3/2 A/ | G E E3/2 E/ | D G G/F/G/A/ | B A A G/A/ | B2 B3/2 A/ | G E E3/2 E/ | D d d B | 
 A G G :| G/A/ | B G A G/A/ | B G A G/A/ | B d d B | A G A G/A/ | B G A G/A/ | B G A G/A/ | 
 B d d B | A G G :|  