Create a melody and harmony adhering to the specified musical parameters.
'Ternary', 'Sectional: Verse/Chorus/Bridge'  
X:1
L:1/8
M:4/4
K:D
 A2 |: defg afdf | (3efe ce Aece | defg afdf |1 egfe fddA :|2 egfe fddB || AD (3FED ADDB | 
 ADFD EA A2 | DEFG EGFG |1 egfe fddB :|2 egfe"D" d2 z2 ||  