The music that describes nature or tells a story is known as program music. Program music is a type of instrumental music that aims to depict a specific story, scene, or idea without the use of lyrics.
Here are a few examples of program music:
1. Beethoven's "Pastoral Symphony" - This symphony vividly portrays scenes of nature, including a brook, a storm, and the feeling of gratitude after a thunderstorm.
2. Vivaldi's "The Four Seasons" - Each of the four violin concertos in this piece represents a different season of the year, using music to evoke the sounds and moods associated with each season.
3. Richard Strauss' "Also sprach Zarathustra" - This tone poem is inspired by Nietzsche's philosophical novel and aims to express the story and themes through music.
These examples illustrate how program music can be used to convey emotions, tell stories, or depict natural elements through musical composition.