Design melodious sequences that follow the stipulated arrangement.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:4/4
K:Amix
 f | ((e2 c>)A c<ec>A) | (e>cA>c e2){g} f2 | (e2 c>)A c<ec>A | (d>BG>B d2{fa} f2) | 
 ((e2 c>)A c<ec>A) | (e>cA>c e>A a/g/f) | (e>Ac>A c<ec>A) | (d>BG>B d2{fa} f2) || (e<ac>a e>ac>a) | 
 (g/f/e) a>c e2{fa} f2 | (e<ac<a e>fg>e) | (d/c/B g>B d2{fa} f2) | (e<ac<a e<ac>a) | 
 ((g/f/e) a>c e2 (e/f/g)) | (a/g/f g/(f/e) f/(e/d) (e/d/c)) | d/c/B gB d2{fa} f2!D.C.! || 
"^Variation to be played against the first strain" f | (e2 c>)e A/<A/e c>e | 
 A/<A/e c>e A/<A/e{g} a2 | e2 c>e A/<A/e c>e | (d/c/B) g>B d2{fa} f2 ||  