Schloss Köthen has been fully restored except for a small side wing bombed in 1944. Its Hall of Mirrors where Bach's music is now often performed is a popular attraction. It can be seen on DVD in the Freiburg Baroque Orchestra's recording of the Brandenburg concertos. Since 1967 a bi-annual Bach Festival has been held at Köthen, in the various halls of the palace as well as the local churches. Another concert hall was opened in 2008 in the palace complex.