The Beethoven concert of 22 December 1808 was a benefit concert held for Ludwig van Beethoven at the Theater an der Wien in Vienna that featured the public premieres of Beethoven's Fifth and Sixth Symphonies, the Fourth Piano Concerto and the Choral Fantasy. This concert, then called an Akademie, occurred in a very cold hall and lasted for approximately four hours. Its featured performers were an orchestra, chorus, vocal soloists, and the composer was featured as soloist at the piano. Beethoven biographer Barry Cooper refers to the concert, in terms of its content, as the "most remarkable" of Beethoven's career.