Develop harmonic tunes by conforming to the outlined musical pattern.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:4/4
K:D
 A | dA A2 BAGF | GABd cABc | dfed cABc | dfec d3 A | dA A2 BAGF | GABd cABc | dfed cABc | 
 dfec d3 :| A | Adfd Adfd | g2 gf edcB | Acec Acec | f2 fe dcBc | Adfd Adfd | g2 gf edcB | 
 a2 af gfed | cdec d3 :|  