Develop harmonies in accordance with the predetermined musical layout.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:2/2
K:A
 A2 cA eAfA | eAfA ecBc | A2 (3cBA eAfA | ecBc AFEF | A2 (3cBA eAfA | eAfA ecBc | ABAF Ecdf | 
 ecBc A2 (3EFG :: A2 ce a3 f | (3efg ed cdBc | ABce a4 | fbba b4 | a3 e (3fga ec | dB (3cBA BA F2 | 
 ABAF Ecdf | ecBc A2 (3EFG :|  