Produce music compositions abiding by the stipulated structure and the presented musical idea.
X:1
L:1/4
Q:3/4=100
M:6/4
K:Bb
['B d f', 'b a g'  
X:1
L:1/4
Q:3/4=100
M:6/4
K:Bb
 F B2 f d2 g | f2 e d c B | d f b B d f | A3 F2 E | D2 B G2 c | A2 d c d e | d =e f e g e | 
 f3- f2 :| f | c2 c c d e | d3- d2 d | g2 a b a g | =e3- e2 g | d g b d g b | d ^f a d f a | 
 b a g d g ^f | g3- g2 a | b f d e g b | c3 d2 e | f3/2 g/ f f e d | c3 F2 E | D F B G B e | 
 A c f B b a | g f e/d/ c2 B | B3- B2 |]  