Develop a tune that adheres to the given musical structure.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
Q:1/8=180
M:2/2
K:G
"^D modal" ed |: cAAB cABG | EGDG EGDB | cAAB cABG |1 Addc defd :|2 Addc d2 || de | f2 fd e2 ec | 
 dfed cAAg | f2 fe e2 ed | eaag edd z | eaag edd z | fgaf efge | dfed cAAG | Addc defg | 
 afge dfed |]  