Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:2/4
K:G
['G A']  
X:1
L:1/8
M:2/4
K:G
 G E/ E/ G A | B B/ d/ A2- | A4 | B4 | A G A B/ d/ | B A G z | z G G G |[M:3/4] A B A B G A | 
[M:2/4] A4 | E4 |]  