karl
lengfeld

I like composing, among many other things: real-time DSP, hardware, generative systems that never repeat, and researching new ways for sound to exist.

Karl Lengfeld is my codename. I'm Carlos Roldán: 15+ years of sound design and score, most of them behind the scenes, on other people's work.

Everything comes out under my own name now, down to the tools when a project needs it.

selected work

2026·collaboration

w/ brokemypencils

A silent science-fiction reel by Allan Parker: a machine opening archival footage until it gets cut off. He keeps the picture, I wrote the sound — a voice for every element built to have one.

2026·collaboration

Strange Projectors 478

A looping video from Brandon Eversole's Public Memory. The score came out of a generative system I built and left running for hours without repeating itself; he cut the stretch that fit his frame.

2026·instrument

MODBOY

A Game Boy rebuilt as a playable Max for Live instrument: bend the live chip while the game runs, split it into stems, recall any moment cold.

Karl Lengfeld

Games, film, video, records: score, sound design, and the audio systems underneath. Tell me about the project.

karlengfeld@gmail.com