Build your composition by using the subsequent musical layout as a reference.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
Q:1/2=90
M:2/2
K:C
 C |[K:A] Pefxed aS (.ME/F/G) | A2 AA A2 (cd) | ecea ecBA | (fe)(dc) (dc)(BA) | GABc B2 E2 | 
 A2 AA"^tr" A2 cd | ecea ecBA | fedc dcBA | E2 G2{B}"^tr" A4 :: (cd) | ecea ecea | fdfa fdfa | 
 fedc dcBA | GABc"^tr" B2 cd | ecea ecea | fdfa fdfa | fedc dcBA | E2 G2"^tr" A4 :|  