Construct a musical piece while maintaining the prescribed format.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
Q:1/8=200
M:2/4
K:D
 dg g/f/g/e/ | dg B2 | Af f2 | Bg g2 | dg g/f/g/e/ | dg B2 | Af af | gg g2 :: A/d/f fa | ag g/f/e | 
 A/c/e eg | gf fe/d/ | A/d/f fa | agg/f/e | A/c/eA/c/e | dd d2 :: D/G/B BB | D/G/B BB | 
 =c/B/A c/B/A | GB ed | D/G/BBB | D/G/B BB | =c/B/A c/B/A | G2 g2 :|  