Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
Q:1/4=140
M:4/4
K:D
['d2 Ad', 'defg (f/g/a) fd'  
X:1
L:1/8
Q:1/4=140
M:4/4
K:D
 A, | D2 FA d2 Ad | dcdf fedc | d2 Ad BAGF | E2 AG FDD :|"^NB" A | defg (f/g/a) fd | g2 bg e2 cA | 
 defg (f/g/a) fd | egfe fddA | defg (f/g/a) fd | g2 bg e2 cA | d2 Ad BAGF | E2 AG FDD |]  