Base your composition's organization on the established musical structure.
'Sectional: Through Composed'  
X:1
L:1/4
Q:3/4=90
M:4/4
K:Dmin
|: D E F TE2 D | d2 e f2 g | a g f e d c | A f d c A F | D E F TE2 D | d2 e f2 g | a g f e d ^c | 
 d3 D3 :: f g a f g a | f g a Tg2 f | e c g e c g | e c g Tf2 e | f g a a g f | e f g g f e | 
 f g a A d ^c | d3 D3 ::[M:4/4][K:C][Q:1/2=75] g/4f/4 | e/d/c/A/ G/A/ c | e/d/c/d/ e/a/g/f/ | 
 e/d/c/A/ G/A/ c/e/ | f/e/d/e/ c3/2 ::"^NB" f/ | e/4f/4g/ g/g/ e/4f/4g/ g/g/ | 
 f/4g/4a/ a/a/ f/4g/4a/ a/a/ | e/4f/4g/ g/g/ e/4f/4g/ g/g/ | f/e/d/e/ c3/2 :|  