Create a melody and harmony adhering to the specified musical parameters.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
Q:1/8=150
M:4/4
K:D
 ag | (3faf df AdFA | DFAd f2 ef | gbeg dfAF | GABG E2 ag |"^5" (3faf df AdFA | DFAd f2 ef | 
 gfed cABc | d2 f2 d2 :| z2 |"^9" GFGA Bcde | fgfe dcdB | A2 f2 fe f2 | G2 e2 ed e2 | 
"^13" GFGA Bcde | fgfe dcdB | Afed cABc | dfec d2 :| ag |"^17" (3fgf (3efe (3ded (3cec | 
 (3BcB (3ABA G2 ba |"^21" (3gag (3fgf (3efe (3ded | (3cdc (3BcB A2 ag | 
"^25" (3fgf (3efe (3ded (3cdc | (3BcB (3ABA (3GAG (3FGF | Efed cABc | d2 f2 d2 :|  