Create a tune following the given language-based musical structure.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:4/4
K:G
|: f | gBBA BAGB | AGFE DCB,A, | G,B,DG GFGA | BGcB A3 f | gBBA BAGB | AGFG ABcA | BBgB dgeg | 
 fdef g3 :| e | f2 cf Afca | gfdc cBAB | ADDD ABcA | defa defg | acBc Acfa | gfdc cBAB | 
 ADDD ABcA | defa g3 e | f2 cf Afca | gfdc cBAB | ADDD ABcA | defa defg | a4 Acfa | gfdc cBAB | 
 ADDD ABcA | defa g3 ||"^last" defg agfa | g2 ||  