Develop a tune that adheres to the given musical structure.
'Sectional: Through Composed'  
X:1
L:1/8
M:4/4
K:G
 G2 BG AGBG | G2 BG GEDE | G2 BG AGAB |1 BAGE EDDE :|2 BAGE ED D2 |: dedB AGAB | dedB BAAB | 
 dedB AGAB | BAGE ED D2 :: dgbg agbg | dgbg agef | g3 e dedB |1 BAGE ED D2 :|2 BAGE EDDg :| 
 edBg edBg | edBA GEEg | edBg edBA | GAGE EDDg | edBg edBg | edBA GE E2 | ed (3Bcd ef g2 | 
 GAGE EDEF ||  