symphonic poem; tone poem
A single-movement orchestral work that illustrates or evokes a poem, story, painting, or landscape. Common in classical music contexts.
Smetana's symphonic poem "The Moldau" is famous.
This composer left many symphonic poems.
Compound of 交響 (resonance, symphony) and 詩 (poem). The term was coined in the 19th century to describe programmatic orchestral works.