Build melodic lines that comply with the set musical framework.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:2/4
K:D
 c |: df B>c | df B>d | ce Ac/d/ | ec A>c | df B>c | df B>d | ce cA |1 B2 B>c :|2 B2 B2 |: 
 b2 B/d/f/^a/ | bb f>^g | ae A/B/c/d/ | ec A2 | b2 B/d/f/^g/ | bb f>e | de f/e/d/c/ | B2 B2 :|  