The Symphony No. 5 in C minor of Ludwig van Beethoven, Op. 67, was written between 1804–1808. It is one of the best-known compositions in classical music, and one of the most frequently played symphonies. First performed in Vienna's Theater an der Wien in 1808, the work achieved its prodigious reputation soon afterward. E. T. A. Hoffmann described the symphony as "one of the most important works of the time".