Generate music that aligns with the specified structural requirements.
'Sectional: Through Composed'  
X:1
L:1/8
M:3/4
K:D
|: (3def | g>f g>b a>g | f>A d>c d<f | e>A c>=c ^c>e | f>A d>c d<f | g2 e>b (3bag | f<A d>c d>f | 
 e<A c>=c ^c>e | d2 D2 :: (3fed | e>A c>=c ^c>A | f>A d>c d>f | e>a c>e g>a | b>a ^g>a f>d |1 
 e>A c2 (3gfe | f>A d>A a>f | g>e c>A g>e | d2 D2 :|2 g>e c>^g (3bag | a>f d>c d>A | 
 e<A c>=c (3^cBA | d2 D2- D |]:[K:G] B | c>B A>e d>c | B>D G2 G>B | A>D F2 (3FGA | B>D G2 G>B | 
 c2 A>E (3edc | B>D G2- G>B | A>D F2- F>A |1 G2 G2- G :|2 G4 |: D2 | A>D F2- F>D | B>D G2- G>B | 
 A>D c2- c>D | B>D G2- G>B | c>B A>e d>c | (3Bcd G>F G>B | A>D (3FED F>A | G4 :|  