Construct tunes adhering to the given musical structure.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:2/2
K:D
|:"D" af dB Ad FA | DF Ad f2 ef |"A" (3gfe cB Ac eg | a^g ab a2 f=g |"D" af dB Ad FA | 
 DF Ad f2 ef |"A" (3gfe cB Ac ec |"D" df ec d4 ::"D" DF Ad (3BdB AF | DF Ad (3BdB A z | 
"A" A,C EA ce af | gf ed cB AF |"D" DF Ad (3BdB AF | DF Ad (3BdB A z |"A" A,C EA ce af | 
 (3gfe cA"D" d2 FE :|  