Build your composition by using the subsequent musical layout as a reference.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:2/2
K:D
 ag | (3fgf df Ad FA | DFAd (3fgf ef | gbge ceAF | GABG E2 ag | (3fgf df Ad FA | DFAd (3fgf ef | 
 gbge cABc | d2 f2 d2 ::[K:G] D2 | GFGA Bcde | f2 fe dcdB | A2 f2 fAfA | G2 e2 eGeG | GFGA Bcde | 
 f2 fe dcdB | Afed cABc | d2 f2 d2 :|"^\"Variation, 'A' part, 2nd time around:\"" ag | 
 (3fgf (3efe (3ded (3cdc | (3BcB (3ABA G2 ba | (3gag (3fgf (3efe (3ded | (3cdc (3BcB A2 ag | 
 (3fgf (3efe (3ded (3cdc | (3BcB (3ABA (3GAG (3FGF | Eged cABc | d2 f2 d2 ||  