Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
M:2/4
K:G
['G>A Bc A3']  
X:1
L:1/8
M:2/4
K:G
|: G>A Bc | A3 B | cB AG | GF D2 | G>A Bc | A3 d | dc AF |1 G2 GD :|2 G2 Bc |]  