Select the most appropriate one-word substitution for the given group of words

A sad poem or a song.

Elegy

The most appropriate one-word substitution for the given group of words is elegy.

• Ode is a poem that celebrates something or someone.
• Recluse is a person who lives in seclusion.
• Poem is a literary work in which the expression of feelings and ideas is given intensity by the use of rhythm, rhyme, and other figures of speech.
• Elegy is a poem of serious reflection, typically a lament for the dead.