Difference between Dirge and Threnody

DIRGE vs THRENODY: NOUN

A piece of music of a mournful character, to accompany funeral rites; a funeral hymn.
Synonyms Dirge, Requiem, Elegy, lament, threnody, coronach. The first three are primarily and almost uniformly suggested by the death of some person. A dirge or a requiem may be only music or may be a song. An elegy is a poem, which may or may not be sung. A requiem, being originally sung for the repose of the soul of a deceased person, retains a corresponding character when the music does not accompany words.
A funeral hymn; the funeral service as sung; hence, a song or tune expressing grief, lamentation, and mourning.
The Office of the Dead.
A mournful or elegiac poem or other literary work.
A slow, mournful musical composition.
A funeral hymn or lament.
A song or hymn of mourning composed or performed as a memorial to a dead person

A song or poem of lamentation or mourning for a dead person; a dirge; an elegy.
A song of lamentation; a threnode.
A song of lamentation; a dirge; especially, a poem composed for the occasion of the funeral of some personage.
A poem or song of mourning or lamentation.
A song or hymn of mourning composed or performed as a memorial to a dead person

Lamentation, Postlude, Balladry, Doomy, Wail, Lullaby, Hymn, Melody, Melancholy, Ballad, Elegy, Coronach, Lament, Requiem, Threnody

Toccata, Chaconne, Plaintiveness, Fugue, Ballade, Danse macabre, Melancholy, Lamentation, Symphonic poem, Arioso, Passacaglia, Coronach, Lament, Requiem, Dirge

Anthem, Lamentation, Postlude, Balladry, Doomy, Wail, Lullaby, Hymn, Melody, Melancholy, Ballad, Elegy, Lament, Requiem, Threnody

Mournfulness, Toccata, Chaconne, Plaintiveness, Fugue, Ballade, Danse macabre, Melancholy, Lamentation, Symphonic poem, Arioso, Passacaglia, Lament, Requiem, Dirge

Noisy, clangy, industrial, dirge rock propelled by an incessantly droney hum of a guitar rhythm.
Sheer Terror type of dirge before it goes off galloping down the fastcore highway.
Why did it sound like the drum roll of a funeral dirge.
The Thin Red Line, but far more primal ndash; whispers a dirge.
The MOOD MUSIC for this puzzle seems like a dirge.
Argive but wept for pity of the dirge they chaunted.
Behind Thrust and Dirge came a tall, dark Cybertronian.
Wish You Were Here chords sound like a dirge.
Advent Children, Crisis Core, Dirge of Cerberus, etc.
And now he goes back into the dirge.

Krysztov Penderecki The Threnody for the Victims of Hiroshima is a gripping statement.
Imperial raksha Erratic Threnody leads a force of fair folk into the scavenger lands.