The album, featuring Milan Knizak, Petr Ferenc (aka Phaerentz) and Opening Performance Orchestra, includes Knizak’s 1973 private recording Broken Music, released as a multiple of forty copies by Armin Hundertmark in 1983 on Edition Hundertmark, and a live version of Broken Rebroken, performed in January 2020 at the Museum of Czech Music in Prague. The album comes with a comprehensive 24-page booklet that includes an interview with Milan Knizak on the topic of Broken Music, an extended essay by Petr Ferenc that originally appeared in Czech Music Quarterly, visual documentation from the archives of Maria Knizakova and Opening Performance Orchestra, as well as Anna Bastyrova photographic documentation from the 2020 performance of Broken Rebroken. The cover of the album consists of photographs of Milan Knizak’s now-defunct 1963 assemblage. Mastering was done by Stephan Mathieu and Gabriel Séverin, who also made the audio restoration of the archival recording Broken Music.