Create tunes that fit within the given musical structure.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/16
M:2/4
K:D
|:"D" fdfa g2f2 |"A7" c2aa aaaa | aceg f2e2 |1,3"D" d2bb bbbb :|2,4"D" d2d2 d4 ::"D" b2a2 f2d2 | 
"A7" cegc agec |1,3 a2g2 e2c2 |"D" dfad bafd :|2,4 aaaa a2ce |"D" d2d2 d4 :|  