Develop a tune that adheres to the given musical structure.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:2/2
K:G
 e/f/ |: gG G/G/G BGBd | ABcd edef | gG G/G/G BGBd | edef g2 g>f :| g2 g>d BGdB | g2 g>e fgab | 
 g2 g>d BGdB | ABcd e2 de | g2 g>d BGdB | g2 g>e fgab | gfgd BGdB | ABcd edef ||  