Symphony No. 4 is a classical music composition by Ludwig van Beethoven, completed in 1806. It is known for its cheerful and uplifting character, often described as a celebration of life. The symphony consists of four movements, showcasing a blend of lyrical melodies and dynamic orchestration. The work is notable for its innovative use of form and harmony, reflecting Beethoven's evolving style. The second movement, Adagio, contrasts with the lively outer movements, providing a moment of introspection. Overall, Symphony No. 4 is appreciated for its balance of energy and elegance, making it a significant piece in the symphonic repertoire.