Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/8
M:2/4
K:A
['B c']  
X:1
L:1/8
M:2/4
K:A
 A A2 B | c e c B | c A B c | A2 z2 | e c e c | B c B A | F F A C | E4 | A C E2 | E c B c | E2 F2 | 
 A A B c | A A B c | A4 |]  