Permanent Parts is the second album released by visual artist Katharina Grosse (synthesizer) and musician Stefan Schneider (synthesizer; So Sner, To Rococo Rot, Mapstation). Grosse and Schneider were joined at Galerie Max Hetzler on 29 April 2023, performing as part of the Spectrum without Traces exhibition, by three artists who all generally work within improvised music - Carina Khorkhordina (trumpet), Tintin Patrone (trombone and electronics), and Billy Roisz (noise generator, piezo and mini cymbal). Permanent Parts is an extraordinary set of recordings that inhabits multiple zones at once: within its thirty-five minutes, we can hear the interactions of non-idiomatic collective music making, and the electronic glimmers of electro-acoustics, while, at the same time, the music remains untethered to genre.