Build your composition by using the subsequent musical layout as a reference.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
Q:1/2=80
M:2/2
K:D
 ag | f2 fe d2 dc | BcdB A2 (3ABc | d2 Ad f2 df | agfg e2 ag | f2 fe d2 dc | BcdB A2 gf | 
 gbag fdec | d2 d2 d2 :: (3ABc | d2 b2 bged | c2 a2 a2 (3ABc | d2 g2 gfed | ce (3dcB A2 (3ABc | 
 d2 b2 bged | c2 a2 a2 gf | gbag fdec | d2 d2 d2 :|  