Create a melody and harmony adhering to the specified musical parameters.
'Sectional: Through Composed'  
X:1
L:1/8
M:2/2
K:D
 af | d2 d2 Tf3 e | defg a2 AG | TF2 A4 GF | E2 E2 =c3 e | d2 d2 Tf3 e | defg a2 (ga) | bagf gfef | 
 (d3 e) D2 :: fe | d2 A2 TF3 A | dAGA TF2 (ED) | E2 =c4 EF | GFED =C2 (fe) | d2 A2 TF3 E | 
 DEFG A2 (ag) | fgaf ecAc | d4 D2 :: fe | defa faef | defd f/e/f/g/ aA | FGAB ABFA | EeBd Tc3 A | 
 afdf geaA | dfeg fagb | gafg ecAc | d4 D2 :: fg | afdA FDAF | AdAB FDAF | EG=cG EGcG | 
 =cGEc E=CGE | FDGE AFBG | AFdB ecfd | geaf ecAc | d4 D2 :|  