Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/4
M:6/4
K:D
['A F2', 'A B c'  
X:1
L:1/4
M:6/4
K:D
|: D2 A F2 B | A F2 E2 D | d3/2 e/ f e c2 | B3 A3 :: a2 g f c2 | d2 c B2 e/f/ | g3/2 a/g/f/ e c2 | 
 B3 A B c | d2 c B F2 | G2 F E A B | c d e A2 f | e3 d3 |]  