expressly composed for the stage at Bayreuth and many of the most famous recordings of the opera come from live performances on that stage. In the pre-LP era, Karl Muck conducted excerpts from the opera at Bayreuth. These are still considered some of the best performances of the opera on disc. They also contain the only sound evidence of the bells constructed for the work's premiere, which were melted down for scrap during World War II. Hans Knappertsbusch was the conductor most closely associated with Parsifal at Bayreuth in the post-war years, and the performances under his baton in 1951 marked the re-opening of the Bayreuth Festival after World War II. These historic performances were recorded and are available on the Teldec label in mono sound. Knappertsbusch recorded the opera again for Philips in 1962 in stereo, and this release is often considered to be the classic Parsifal recording. There are also many "unofficial" live recordings from Bayreuth, capturing virtually every Parsifal cast ever conducted by Knappertsbusch. Pierre Boulez (1971) and James Levine (1985) have also made recordings of the opera at Bayreuth that were released on Deutsche Grammophon and Philips. The Boulez recording is one of the fastest on record, and the Levine one of the slowest. Amongst other recordings, those conducted by Georg Solti, James Levine (with the Metropolitan Opera Orchestra), Herbert von Karajan, and Daniel Barenboim (the latter two both conducting the Berlin Philharmonic) have been widely praised. The Karajan recording was voted "Record of the Year" in the 1981 Gramophone Awards. Also highly regarded is a recording of Parsifal under the baton of Rafael Kubelík originally made for Deutsche Grammophon, now reissued on Arts & Archives. On the 14 December 2013 broadcast of BBC Radio 3's CD Review – Building a Library, music critic David Nice surveyed recordings of Parsifal and recommended the recording by the Symphonieorchester des Bayerischen Rundfunks, Rafael Kubelik (conductor), as the best available choice. Filmed versions In addition to a number of staged performances available on DVD, Parsifal was adapted for the screen by Daniel Mangrané in 1951 and Hans-Jürgen Syberberg in 1982. There is also a 1998 documentary directed by Tony Palmer titled: Parsifal – The Search for the Grail. It was recorded in various European theaters, including the Mariinsky Theatre, the Ravello Festival in Siena, and the Bayreuth Festival. It contains extracts from Palmer's stage production of Parsifal starring Plácido