Klatter is the third collaborative studio album and sixth release by the Japanese experimentalrock band Boris and Japanese noise musicianMerzbow.[2] The album features re-recorded versions of "Akuma no Uta" and "Naki Kyoku" from Akuma no Uta, and a cover of the song "Jane" by the German progressive rock group of the same name. It was originally planned for release on Troubleman Unlimited in 2007 under the unconfirmed title Mellow Peak, but for unknown reasons, the release did not happen.