Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
M:2/4
K:F
['AB G2 z2']  
X:1
L:1/8
M:2/4
K:F
 A | A2 GA | c2 BA | G2 AB | G2 z2 | c2 AB | G2 z2 | A2 GA | F2 z |]  