Based in Austria’s Alpine region, Decaz began DJing in 2020 and started producing in 2024. The Austrian producer and DJ makes liquid drum and bass and co-founded Empathy Audio, as well as the Resonate Records DJ collective. Decaz has released music through Fokuz Recordings, Impolite Records, Celsius Recordings and Abyssal Music. Decaz is the stage name of Georg Haselwanter. His first event listing on Resident Advisor was in 2023.
In 2024, Decaz worked with YUTA on the track Revenance, released through Empathy Audio. The following year brought the Spiraling Out EP on Celsius Recordings, alongside the single Endless Expectations on Beats In Mind and the single Failure on Rollout Records.
In 2026, Decaz released the single Sonder EP with TMK on Celsius Recordings, the single Revenance (Myth Remix) with Myth and YUTA on Empathy Audio, and the single My Feelings on Impolite Records. On 7 August, Decaz played at Club Lucia for an event featuring Fokuz Recordings.