tone poem
US /ˈtoʊn ˌpoʊ.ɪm/
UK /ˈtoʊn ˌpoʊ.ɪm/

1.
a piece of orchestral music, typically in one movement, that illustrates or evokes the content of a poem, short story, novel, painting, or other non-musical source.
:
•
Richard Strauss's 'Also sprach Zarathustra' is a famous tone poem.
•
Many composers in the Romantic era wrote tone poems.