GAZ WILLIAMS / BRISTOL, UK
Music without boundaries.
Bassist, producer, mastering engineer and electronic musician.
Four decades of performance and recording, from acclaimed collaborations to independent projects and freely improvised music.

A life in music
Gaz Williams is a Welsh musician whose work moves between live performance, record production and music technology. He was a founding member of Charlotte Church’s Pop Dungeon, toured internationally with Karl Hyde of Underworld, and has contributed to more than 200 commercial recordings. Since 2010 he has also been a presenter and panellist at Sonicstate.
Experimentation runs through it all — from psychedelic rock and festival performances to improvised electronic music and the studio work behind the records.
Selected projects
quasimodal
Modular synthesis and acoustic drums in close dialogue. With drummer Greg White, Gaz creates extended improvisations without a fixed arrangement or click track.
Rack Records
Founded with Steve Davis in 2024 to support adventurous electronic music and live performance. Their collaborative album Shipwreck was released in 2025.
Rocketgoldstar
A Cardiff psychedelic and art-rock project with a long history of unconventional recordings and performances, including a twelve-hour single and an early headphone-only concert.
The Rumble-O’s
Instrumental surf rock, festival stages and a long-running Bristol band. The group also created a live score for the classic surfing film The Endless Summer.
Onstage and in the studio
Performance
Alongside Pop Dungeon and Karl Hyde, Gaz has worked with musicians including David Rhodes, William D. Drake, Marc Almond and Carl Barât, as well as a wide range of independent and experimental artists.
Production and mastering
Producing records since 2001, Gaz has contributed to releases by Robyn Hitchcock, Keith Tippett’s Tapestry Orchestra, Schnauser and numerous artists from the Welsh and Bristol music scenes.
Music technology
A freelance Sonicstate contributor and regular Sonic TALK panellist since 2010, Gaz is a familiar face in music technology. He also runs his own YouTube channel and hosted numerous independent shows during lockdown.
From the archive
A few details tell their own story: in 2000, Rocketgoldstar staged an early headphone-only concert in Cardiff; the band’s twelve-hour single brought together more than sixty local musicians; and Asteroid Deluxe later created original live scores for films including The Holy Mountain.
There is much more to document. This website is a growing record of the bands, recordings, performances and people behind the work.
