Develop a tune that adheres to the given musical structure.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:6/8
K:G
 AGF G2 A | BAG ABc | dgf d3 | ded cAd | AGF G2 A | BAG ABc | dgf d2 B | cAF G3 ::[K:D] A3 d2 e | 
 f2 d gfe | dgf e2 c | ABA AFG | A3 d2 e | f2 d gfe | aba fec | edc d3 ::[K:G] B3 GBd | gfg ege | 
 ded c3 | B3 AFD | ded GBd | gfa gfa | gdB cAF | AGF G3 :|  