Employ the subsequent musical design as a foundation for your piece.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:2/4
K:D
 A | A>A A<f | e>d e>f | A>A B>c | d2 dB | A>A a<f | e>d e<f | A>A Bc | d3 |] !fermata!f | 
 a>f d<f | e>c Af | a>f ga | b2 g<b | a<f g<e | f<d e<a | A>A Bc |"^da Capo" d3 |]  