《交響曲第5番》, commonly known as Beethoven's Fifth Symphony, is one of the most famous classical compositions. Completed in 1808, it is renowned for its distinctive four-note opening motif, often interpreted as "fate knocking at the door." The symphony is structured in four movements, showcasing a range of emotions and musical techniques. The work is a significant part of the Western classical music repertoire and has influenced many composers. It is frequently performed in concert halls and has been featured in various films and media, solidifying its place in popular culture.