A symphonic poem is a piece of orchestral music that tells a story or conveys a specific idea, often inspired by literature, art, or nature. Unlike traditional symphonies, which follow a structured format, symphonic poems are typically free in form and can vary in length. They aim to evoke emotions and imagery through musical themes and motifs. The concept of the symphonic poem was popularized in the 19th century by composers like Franz Liszt, who is often credited with its development. These compositions often serve as a bridge between classical music and programmatic music, where the latter explicitly describes a narrative or scene.