Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
M:4/4
K:G
['', 'B BcBG BA (3GAG FEDF', 'EFGA BA G2'  
X:1
L:1/8
M:4/4
K:G
 B |: BcBG BA (3GAG | FEDF E2 EB :| BcBG BAGF | GA B2 (3BAG FG | EFGA BA G2 | FEDE F2 FD | 
 EFGA BA G2 | FEDF E2 E ||  