Thea Peterson

theapeterson

  • Audio Software Developer · Research Engineer
  • Technical Partner, Althemi
  • C++ · JUCE · Real-time DSP

I build real-time signal-processing systems, from audio to clinical data. I'm also measurement lead on a biosignal pilot study at a teaching hospital.

- Expressive Musical Systems, a talk at Oxford, October 2026, with Milton Mermikides (Gresham Professor of Music) and guest artist Anthony Marinelli.

- Speaking to composers at the Tchaikovsky Conservatory, Moscow, November 2026.

- Blossom featured at EVA London 2026, Milton Mermikides’ keynote (BCS), alongside Stephen Wolfram.

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online portfolio · 2026

background

I'm an audio plugin developer and DSP engineer specialising in real-time audio. My work spans commercial plugin development (Althemi/Studio369) and startup co-founding as Head of DSP at Ethereal Computing, building the signal-processing and feature-extraction layers that turn raw signals into structured data. I'm also measurement lead on a biosignal pilot study at a teaching hospital, applying the same real-time signal-processing work to clinical movement data.

currently

What I'm working on

co-founder · head of dsp

Ethereal Computing

Co-founder and Head of DSP. I designed the real-time signal-processing and feature-extraction core from scratch.

etherealcomputing.com

co-founder · plugin developer

Althemi

Co-founder of Althemi, a boutique audio software studio. Blossom is a real-time MIDI harmonizer for macOS music production, built in C++20.

althemi.space

research · ongoing

Forensic Musicology

Research engineering with forensic musicologist Joe Bennett. I built an LLM-backed intake and triage system for his practice. The casework itself stays under NDA.

casework under NDA
Night skin

Harmonize

1/3

Harmonize

Free chord

Perform

three voicing modes

One melody in. A full arrangement out.

case study

• blossom

real-time MIDI harmonizer for performers

$ blossom --init

harmony: ready

voices: melody · counterpoint · harmony

chord input: listening

presets: A–H loaded

status: ready to play

voicings: 0 loaded

harmonize

instant

play a melody · hear counterpoint and harmony in real time

free chord

any voicing

hold chords on one hand · play melody with the other

snapshots

A–H banks

recall on any MIDI pedal · program change · CC

live performance

seamless

change presets mid-song · switch chords mid-phrase · nothing breaks

case study close

That's Blossom.

Built top to bottom · DSP, UI, signing, distribution · Althemi · 2024–present

kernel online v2.0.0 · macOS

see it live

Connect With Me

get in touch

For collaboration, consulting, or research inquiries.