*2025 stock* In 2013, the collaboration of electronic musician Gaudenz Badrutt and saxophonist Ilia Belorukov began in a trio with accordionist Jonas Kocher, and in 2014 the album Rotonda was released on Intonema. Since then, time has passed, Badrutt and Belorukov have toured also as a duo, Belorukov later switching to a modular synthesizer.

In March 2019 in Biel/Bienne, the duo fruitfully worked in a new context, looking for fresh ways to interact, not only with each other, but also between electronic setups, in which complex patches and processing chains are filled with feedback and, therefore, unpredictability. The album Sauerkraut is a document of free improvisation in an extremely wide framework from barely audible field recordings and reductionism to the deafening chaos of electrical processes of live sampling and synthesizer modulations.