The Workshop Computer is part of the Music Thing Workshop System. This site provides access to all the available program cards, their documentation, and downloadable firmware files (.uf2). On Chrome and some other browsers, cards can be programmed directly from this site.

Simple MIDI

Takes USB midi, sends it to pulse and CV outputs, also sends knob positions and CV inputs back to the computer as CC values.

  • CreatorTom Whitwell
  • Version0.6.6
  • LanguageArduino-Pico
  • StatusWorking but simple
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Coming Soon

Reserved for upcoming project

  • CreatorNone
  • Versionunknown
  • LanguageNone
  • StatusNone
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BYO Benjolin

Rungler, Chaotic VCO, Noise Source, Turing Machine, Quantizer

  • CreatorDune Desormeaux
  • Version1.1
  • LanguagePico SDK
  • StatusReleased
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Chord Blimey!

Generates CV/Pulse arpeggios

  • CreatorTom Waters
  • Version0.9
  • LanguageC (RPi Pico SDK)
  • StatusMostly complete (for now)
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Bumpers

'Bouncing ball' style delay and trigger generators

  • CreatorChris Johnson
  • Version1.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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DivCom

Comparator and VC clock divider, inspired by Serge NCOM

  • Creatordivmod
  • Version0.1
  • LanguageC++ (RPi Pico SDK) compat. cmake.
  • StatusReleased
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Twists

A port of Mutable Instruments Braids with a web editor

  • CreatorRandom Works
  • Version0.1
  • LanguageC (RPi Pico SDK)
  • StatusFunctional but WIP
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Noisebox

13-algorithm noise synth with CV modulation, sample-and-hold, and crusher mode

  • CreatorEric Gao
  • Version1.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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CVMod

Quad CV delay inspired by Make Noise Multimod

  • CreatorChris Johnson
  • Version1.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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The Bells

Bellringing methods sequencer β€” 12 change-ringing methods with tempo and jitter, quantised to six scales

  • CreatorJames Saunders
  • Version1.0.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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Chord Organ ish

Chord Organ-ish - 16 chords, 8 voices, 1V/oct root. Inspired by Music Thing Chord Organ.

  • Creatorjkeyworth
  • Version0.1
  • LanguagePico SDK (C++), ComputerCard
  • StatusWorking
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Resonator

Karplus-Strong sympathetic resonator for droning and plucked textures, with chord & tanpura tunings, arpeggiator, pitch tracking and web-configurable CV/pulse outputs.

  • CreatorJohan Eklund
  • Version1.2
  • LanguageC++ (ComputerCard)
  • StatusReleased

Sheep

A time-stretching and pitch-shifting granular processor and digital degradation playground with 2 fidelity options.

  • CreatorDune Desormeaux
  • Version1.2
  • LanguagePico SDK
  • StatusReleased
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SlowMod

Chaotic quad-LFO with VCAs

  • Creatordivmod
  • Version0.1
  • LanguageC++ (RPi Pico SDK) compat. w/ cmake and Arduino IDE.
  • StatusReleased
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Crafted Volts

Manually set control voltages (CV) with the input knobs and switch. It also attenuverts (attenuates and inverts) incoming voltages.

  • CreatorBrian Dorsey
  • Version(see source repo)
  • LanguageRust (Embassy framework)
  • StatusReleased
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Utility Pair

25 small utilities, which can be combined in pairs

  • CreatorChris Johnson
  • Version1.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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Siren

Multi-algorithm drone oscillator. Inspired by the Forge TME Vhikk X.

  • CreatorMoses Hoyt
  • Version0.2
  • LanguageC++ (ComputerCard / Pico SDK)
  • StatusFunctional but WIP
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Eighties Bass

Bass-oriented complete monosynth voice consisting of five detuned saw wave oscillators with mixable white noise and adjustable resonant filter.

  • CreatorTod Kurt (@todbot)
  • Version0.1
  • LanguageArduino (arduino-pico) with Mozzi 2
  • StatusFunctional but WIP
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Cirpy Wavetable

Wavetable oscillator that using wavetables from Plaits, Braids, and Microwave,

  • CreatorTod Kurt (@todbot)
  • Version0.1
  • LanguageCircuitPython
  • StatusFunctional but WIP
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ESP

A MS-20-style External Signal Processor that includes a preamp, bandpass filter, envelope follower, gate, and 1v/oct pitch outs.

  • CreatorBen Regnier
  • Version1.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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Vink

Dual delay loops with sigmoid saturation for Jaap Vink / Roland Kayn style feedback patching

  • CreatorBen Regnier
  • Version1.1
  • LanguageC++ (ComputerCard)
  • StatusFunctional
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DualQuant

Dual quantised granular pitch shifter with calibrated 1V/oct CV outputs

  • CreatorUnknown
  • Versionunknown
  • LanguageUnknown
  • StatusUnknown
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FreqShift

Dual Input Frequency Shifter for Feedback Experimentation

  • CreatorBen Regnier
  • Version1.1
  • LanguageC++ (ComputerCard)
  • StatusFunctional
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GradualProcess

Three generative composition processes (Glass, Reich, Tintinnabuli) in one card, chosen by Main's position at power-on

  • CreatorJames Saunders
  • Version1.0.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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Compulidean

Generative Euclidean drum + sample player.

  • CreatorTristan Rowley
  • Version(see source repo)
  • LanguageC++/Arduino, with vscode+platformio.
  • StatusFunctional, but WIP
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Od

Loopable chaotic Lorenz attractor trajectories and zero-crossings as CV and pulses, with sensitivity to initial conditions.

  • CreatorM. John Mills
  • Version1.0
  • LanguageMicroPython
  • StatusReleased
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Knots

Six-engine oscillator firmware for the Music Thing Workshop System

  • CreatorJeff Fletcher
  • Version0.2
  • LanguageC++ (RPi Pico SDK / ComputerCard)
  • StatusReleased
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Backyard Rain

Nature soundscape audio. A cozy rain ambience mix for background listening. You control the intensity. This card plays rain ambience which was recorded in my backyard.

  • CreatorBrian Dorsey
  • Version(see source repo)
  • LanguageRust (Embassy framework)
  • StatusReleased
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Castle Process

Fort Processor-inspired harsh noise processor with chopped external audio and a bass pulse voice

  • CreatorAdrian Vos
  • Versionunknown
  • LanguageC++
  • StatusUnknown
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Birds

Two birds sing to each other controlled by a Turing-style shift register sequencer with clock in and CV/pulse out.

  • CreatorTom Whitwell
  • Version0.5.0
  • LanguageC++ (Pico SDK / ComputerCard)
  • StatusBeta
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Tapegrade

Mono-input stereo cassette warble processor with wow, flutter, hiss, crackle, and tape wear morphing.

  • CreatorUnknown
  • Versionunknown
  • LanguageUnknown
  • StatusUnknown
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Fifths

A quantizer/sequencer that can create harmony and nimbly traverse the circle of fifths in attempts to make jazz

  • CreatorDune Desormeaux
  • Version1.1
  • LanguageC++ (RP2040 Pico SDK)
  • StatusReleased
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Glitch

Clock-synced beat-repeater with ratcheting, reversal and audio degradation

  • CreatorAndy Jenkinson (uglifruit)
  • Version1.4.0
  • LanguageC++ (RP2040 Pico SDK)
  • StatusReleased
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LoCho Vibes

Stereo chorus and vibrato effect featuring triangle, sine, and slow drift LFO modes, modulation-based delay movement, and tape-style saturation.

  • CreatorUnknown
  • Versionunknown
  • LanguageUnknown
  • StatusUnknown
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BitPhase

Resonant 4-stage phaser for the Workshop Computer with deep notch filtering, wide modulation sweeps, controllable resonance, tremolo blending, and digital Burst-mode degradation.

  • CreatorUnknown
  • Versionunknown
  • LanguageUnknown
  • StatusUnknown
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Markov

Dual generative Markov chain module β€” evolving melody (MarkoV) left side, rhythmic percussion patterns (MarkovPerc) right side, with internal synth voice

  • CreatorAndy Jenkinson (uglifruit)
  • Version1.0.0
  • LanguageC++ (Pico SDK)
  • StatusReleased
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Voices of SID

Dual MOS 6581 SID emulation (reSID engine) with CV/gate control, stereo output, waveform selection, and randomize

  • CreatorJoep Vermaat
  • Version1.1
  • LanguageC++ (Pico SDK)
  • StatusReleased
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Degenerator

Degenerator β€” Disintegrating Looper. Capture audio loops and apply irreversible degradation with 6 algorithms (Saturation, Filter Drift, Tape Hiss, Oxide Shedding, Bit Crush, Bit Rot) via preview/apply workflow. Inspired by William Basinski's The Disintegration Loops.

  • CreatorJoep Vermaat
  • Version1.3
  • LanguageC++ (Pico SDK)
  • StatusReleased

Motorik

Motorik drum machine β€” kick/snare/hihat with bass and melody CV, classic Krautrock grooves

  • CreatorJoep Vermaat
  • Version1.0
  • LanguageC++ (Pico SDK)
  • StatusReleased
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Wild Pebble

MIDI-clockable generative rhythm and melody organism inspired by Pet Rock

  • CreatorUnknown
  • Versionunknown
  • LanguageUnknown
  • StatusUnknown
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Hot Fuzz

A stereo fuzz/distortion + resonant wah effects processor with manual and auto-wah modes, built on fixed-point DSP.

  • CreatorJoep Vermaat
  • Version1.0
  • LanguageC++ (ComputerCard)
  • StatusReleased
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Placeholder

Reserved for secret project

  • CreatorNone
  • Versionunknown
  • LanguageNone
  • StatusNone
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Talker

Proof of concept speech synthesizer, based on TalkiePCM, inspired by 1970s LPC speech synths.

  • CreatorChris Johnson
  • Version0.1
  • LanguageC++ (ComputerCard)
  • StatusProof of concept
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West Coast LPG

Dual vactrol-emulating low-pass gate (combined VCA + low-pass filter) with fast-attack/slow-decay 'plong', self-pinging percussion, and per-channel VCA/VCF/LPG modes.

  • CreatorJason Moore
  • Version0.1
  • LanguageC++ (ComputerCard)
  • StatusWorking
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Origami

Dual oversampled wavefolder β€” triangle / sine / hard-clip folding with bias (even-harmonic) control and CV over fold depth, band-limited via 4x oversampling.

  • CreatorJason Moore
  • Version0.1
  • LanguageC++ (ComputerCard)
  • StatusWorking
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Cosmik C1ZZL3

Stable phase-distortion synthesiser and Turing machine firmware with Web MIDI envelope readback, PD, detune, eight waveform families, hosted CZ patch import, USB MIDI device/host operation, and optional Turing MIDI output.

  • CreatorUnknown
  • Versionunknown
  • LanguageUnknown
  • StatusUnknown
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Tesserae

Tesserae β€” Variable-voice (2-8) arpeggiated chord generator with 5 patterns, 10 scales, tap tempo, CV/audio transpose inputs, and dual CV + audio pitch outputs. Inspired by Laurie Spiegel's Music Mouse and Patchwork.

  • CreatorJoep Vermaat
  • Version1.0
  • LanguageC++ (Pico SDK)
  • Statusreleased
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Fr330hfr33

Hardware-tested acid bass synthesiser with selectable saw or square oscillator, switchable 18 or 24 dB diode-style filtering, accent and glide, distortion, USB MIDI device/host operation, and a persistent editable sequencer.

  • CreatorUnknown
  • Versionunknown
  • LanguageUnknown
  • StatusUnknown
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Blank

Reserved for blank 88 cards

  • CreatorTom Whitwell
  • Versionunknown
  • LanguageNone
  • StatusNone
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Pantograph

Trace and record CV β€” record knob movements, loop them at bipolar speed

  • CreatorKenny Shen
  • Version1.0
  • LanguagePico SDK
  • StatusReady
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Chorgan

Chorgan β€” 6-voice chord synthesizer with morphing timbre, chord extension presets, and built-in chord sequencer. Two modes: normal (detune/chorus) and slew (portamento chord changes). Inspired by the Music Thing Modular Chord Organ.

  • CreatorAndy Jenkinson (uglifruit)
  • Version1.1.0
  • LanguageC++ (Pico SDK / ComputerCard)
  • Statusreleased
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OffAir

OffAir β€” AM/Shortwave/Longwave radio simulator. Tune between two Stations and interference with authentic heterodyne whistles, SSB pitch-shift detuning, AM envelope detection, swelling per-band static, and triggerable Insta-ference one-shots. Baked recordings or live audio inputs become the Stations.

  • CreatorAndy Jenkinson (uglifruit)
  • Version1.0.1
  • LanguageC++ (Pico SDK / ComputerCard)
  • Statusreleased
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Cathode Ray

Composite video synthesiser (PAL + NTSC builds) β€” oscilloscope, etch-a-sketch & spectrum analyser, greyscale via dithering, performance effects, 8 alt-boot screensaver/game modes

  • CreatorAndy Jenkinson (uglifruit)
  • Version1.2.0
  • LanguageC++ (RP2040 Pico SDK)
  • StatusReleased
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