In 1993, Jörg Burger, Wolfgang Voigt and Koch together founded the Delirium Köln, a record shop, which also serves as a music label and distributor.

The same year and following years, he recorded numerous solo releases and collaborations with artists such as Wolfgang Voigt, Biochip C., Frank Heiss, Thomas Thorn, Jörg Burger, Electric Indigo, Holger Czukay, ADSX, Wulfmanson, Mary Susan Applegate, Craig Anderton, Omsk information, Fabian Stall, FM Einheit, Andreas Thein and Triple R. With Can Oral he published, among other monikers, as Khan & Walker and Gizz TV & Walker.

[5] [6] In 2015, he began collaborating with the Leipziger Firma Hearthis.at online radio Telepathic Bubblebath, named after the record label, and with the Berliner Baeren Siegel GmbH die Internetart- / Streetart- / Performanceart- Kampagne #scrt_brln.

In 2016 Koch founds the noise.berlin movement, a multimedia art & philosophy project featuring disturbing radical visuals, noise music & abstract thinking.

[8] In 2023 start of Liquid Sky d-vices, a label for experimental hardware and software music instruments, made in Santana da Serra, Portugal.