Apart from recording widely for two decades under various pseudonyms (Stefan Kushima, Cruise Family, Alex Strelka, Bobby Lazar, Easy Rider, Lars Leerkörper), including numerous collaborations under such labels as Editions Mego and Diagonal, Stefan Juster is known for his tireless activity at festivals such as Unsound and Sonic Acts as well as his explorations of the boundaries of techno and dissociative computer music. His collaboration (since 2019) with filmmaker Rainer Kohlberger has resulted in audiovisual performance acts that engage the audience’s perceptive powers, leading viewers into the unmediated vastness of present-day experience in which the boundaries of the self and the world become blurred. As a filmmaker, he works in the tradition of abstract conceptual-experimental films, successfully adapting this aesthetic for the 21st century through the use of state-of-the-art technology. 

Born in 1985 in Linz, Jung An Tagen gives regular performances throughout Austria as well as in prestigious clubs and venues of Belgium, Croatia, Czechia, Denmark, Estonia, Germany, Greece, Hungary, Italy, Japan, Lithuania, Latvia, the Netherlands, Poland, Portugal, Russia, Serbia, Slovakia, Slovenia, South Korea, Spain, Switzerland, Sweden, Ukraine, and the United Kingdom, at such festivals as Ars Electronica and Linzfest (Linz), GOGBOT (Enschede), SPECTROPIA (Riga), CREEPY TEEPEE (Kutná Hora), KLANGfestival (Gallneukirchen) Unsafe+Sounds (Vienna), Unsound (Cracow), NEXT (Bratislava), Stuttgarter Filmwinter, Wiener Festwochen, Open Source Art (OSA Sopot), Heart of Noise (Innsbruck), Donaufestival (Krems), Hiatus (Poznań), Tallinn Music Week, and MaerzMusik (Berlin). His works have been commissioned by the Wiener Festwochen, Künstler*innenhaus Mousonturm (Frankfurt am Main), Donaufestival (Krems), OTTOsonics (Ottensheim), and Black Page Orchestra. His sound installations have been presented in Bar du Bois, Sussudio, Flucc (Vienna), OK (Linz), In de Ruimte (Gent), and Czarny Pokój (Gdańsk). His music and audiovisual projecs have been released on more than 30 CCs, CDs, CD-Rs, and other digital carriers. In 2020 he founded the netlabel ETAT.xyz. 

Selected works: As Stefan Kushima: Current Shot 01, experimental film (co-director with Philippe Gerlach, 2007). As Stefan Juster: Current Shot 02, experimental film (with Lukas Marxt, 2017). As Jung An Tagen: Black Rain White Scars, music for an experimental film by Lukas Marxt (2014), EMBARGO, music for a film essay by Johann Lurf (2014), Sonata In Ш, music for a film and extended reality (with Battle-ax, Haskii and Der Kleine Kreis video group; 2017), MMODEMM Tape, tape plus concert (2018), 20:03 [Y] HOW IS THAT POSSIBLE?, music for a film by Stefan Juster (2018), Agent im Objekt, audiovisual performance (2018), DYAD, experimental film (2019), Parallelfiguren, audio installation (with Gerlinde Wurth, 2019), Slip, a video to Cam Deas’ music (2019), Quartett, music for a play by Heiner Müller, dir. Miloš Lolić (2020), Pulsar Acid, music video (with Erik Frye, 2020), Emergence Collapse, video and extended reality (with Rainer Kohlberger, 2021), Donaufestival, audiovisual concert (with Rainer Kohlberger, 2021), FROM PAST TO FUTURE, PASSING US LIKE GHOSTS, experimental film with computer animation (2023), Halucinatio for flutes, percussion and computer (2023), Hello, Bipster, sound installation (with RM Francis, 2023), The Electric Kiss, music for an experimental film by Rainer Kohlberger (2024).