Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/4
M:4/4
K:A
['B A', 'g a'  
X:1
L:1/4
M:4/4
K:A
 E F | A2 A c B A G B | A B c A e c A G | A c e a (3f =g f e d | c e d f e d c B | 
 A A e c B A G B | A B c A e c A G | A c e a (3f =g f e d | c A e c A2 :| e g | a e c a e c B c | 
 d e f g a g f g | e g b e (3f g f e g | a g b g a e c e | a e c a e c B c | d e f g a g f g | 
 e g b e (3f g f e g | a g b g a2 :|  