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altstrument

altstrument

A directory of custom and third-party firmware and tools for music hardware.

Devices
120
Firmwares
632
Manufacturers
45

LatestAll recent →

Music Thing Modular1

M-VAVE3

  • M-VAVE FM-1 FM synthesizer, top view

    FM-1

    Pocket 6-operator FM synth, 27 keys, colour screen, TRS MIDI

    75 firmwares · 10 toolsJieLi AC791N (WL82), dual-core pi32v2

  • M-VAVE SMK-37 Pro MIDI keyboard, top view

    SMK-37 Pro / Elite

    37-key keyboard with built-in FM synth, 16 RGB pads, 8 encoders, 4 faders

    8 firmwares · 1 toolJieLi AC791N (WL82), dual-core pi32v2

Korg16

  • Top-down view of the Korg prologue analog polysynth

    prologue

    8- or 16-voice analog polysynth with a Multi-Engine that accepts logue SDK units

    21 firmwaresARM Cortex-M4 (STM32F401)

  • Top-down view of the Korg drumlogue drum machine

    drumlogue

    Hybrid analog/digital drum machine with logue SDK units

    15 firmwares

  • Top-down view of the assembled Korg Nu:Tekt NTS-1 digital kit

    Nu:Tekt NTS-1 digital kit

    Build-it-yourself programmable synth kit with logue SDK oscillator and effect slots

    12 firmwares · 1 toolARM Cortex-M4 (STM32F446)

  • Top-down view of the assembled Korg NTS-1 digital kit mkII with its 18-key touch keyboard

    Nu:Tekt NTS-1 digital kit mkII

    Build-it-yourself programmable synth kit with a multitouch keyboard, sequencer and logue SDK 2 units

    8 firmwaresARM Cortex-M7 (STM32H725)

  • Top-down view of the Korg SQ-64 step sequencer with its 64 pads

    SQ-64

    Polyphonic step sequencer with CV, gate and MIDI

    3 firmwares · 3 tools

  • Top-down view of the Korg minilogue xd keyboard

    minilogue xd

    4-voice analog polysynth with a Multi-Engine that accepts logue SDK units

    4 firmwaresARM Cortex-M4 (STM32F401)

  • Top-down view of the assembled Korg NTS-3 kaoss pad kit

    Nu:Tekt NTS-3 kaoss pad kit

    Build-it-yourself Kaoss Pad effects kit with logue SDK generic effect slots

    3 firmwaresARM Cortex-M7 (STM32H725)

  • Top-down view of the red Korg electribe sampler (Electribe 2 Sampler, a member of the Electribe 2 family)

    Electribe 2 / 2 Sampler

    Pattern-based groovebox in synth and sampler variants

    2 firmwaresTI Sitara CPU + Blackfin DSP

  • volca bass

    Compact analog bass machine with a step sequencer

    1 firmware · 1 tool

  • Top-down view of the Korg volca sample digital sample sequencer

    volca sample

    10-part sample player with 16-step sequencer

    2 firmwares

  • Top-down view of the Korg microKORG2 with its 37 mini keys

    microKORG2

    Virtual analog synth and vocoder with logue SDK oscillator and effect units

    1 firmwareARM Cortex-A7 (i.MX6ULZ)

  • RADIAS

    Four-timbre virtual analog synth with vocoder

    1 tool

  • Top-down view of the Korg volca drum digital percussion synthesizer

    volca drum

    6-part digital percussion synth with motion sequencing

    1 firmware

  • Top-down view of the Korg volca fm digital FM synthesizer

    volca fm

    Compact 6-operator FM synth with 16-step sequencer

    1 firmware

Noise Engineering3

  • Noise Engineering Legio platform pictured with the Librae Legio firmware panel (black panel render on transparent background)

    Legio

    6 HP stereo oscillator and effects platform with swappable firmwares

    26 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Noise Engineering Versio platform pictured with the Desmodus Versio firmware panel (black panel render on transparent background)

    Versio

    10 HP stereo effects and DSP platform with swappable firmwares

    26 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Noise Engineering Alia platform pictured with the Basimilus Iteritas Alia firmware panel (black panel render on transparent background)

    Alia

    10 HP oscillator and voice platform with swappable firmwares

    7 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

Elektron12

  • Elektron Model:Cycles, top view

    Model:Cycles

    6-track FM groovebox

    4 firmwares · 1 toolColdFire (MCF5441x)

  • Elektron Digitakt II, top view

    Digitakt II

    16-track sampler

    2 firmwares · 2 toolsColdFire + SHARC+ DSP (ADSP-21569)

  • Machinedrum

    16-track drum synthesizer and sequencer

    2 firmwares · 2 toolsColdFire (MCF5206e) + 2x Motorola DSP56303

  • Elektron Digitone II, top view

    Digitone II

    16-voice FM synth

    2 firmwaresColdFire + SHARC+ DSP (ADSP-21569)

  • Elektron Model:Samples, front view

    Model:Samples

    6-track sample-based groovebox

    2 firmwaresColdFire (MCF5441x)

  • Elektron Syntakt, top view

    Syntakt

    12-track drum and synth groovebox

    2 firmwares2x ColdFire (MCF5441x)

  • Elektron Analog Keys, angled view

    Analog Keys

    4-voice analog keyboard synth

    1 firmwareColdFire (MCF5441x)

monome11

  • monome grid controller, a flat aluminium grid of backlit buttons, lit and connected by a USB cable

    grid

    Backlit button-grid controller, 40h to 2022-era grid one / zero

    5 firmwaresAVR8 (40h, monome kit), RP2040 (2022 and later)

  • Front view of the monome norns sound computer with its OLED screen, knobs and buttons

    norns / norns shield / Fates

    Open Lua + SuperCollider sound computer on Raspberry Pi hardware

    4 firmwares · 1 toolRaspberry Pi (CM3 in norns; 3B, 3B+, 4B in shield and Fates), Linux

  • white whale

    Probabilistic grid step sequencer (discontinued)

    3 firmwaresAVR32 (AT32UC3B)

  • Front panel of the monome ansible Eurorack module (cropped from the product photo)

    ansible

    Grid / arc / Teletype / MIDI companion module (discontinued)

    2 firmwaresAVR32 (AT32UC3B)

  • monome arc, a four-encoder controller with ring LEDs around each knob, connected by a USB cable

    arc

    Four-encoder knob controller with LED rings

    2 firmwares

  • earthsea

    Pattern-recording grid keyboard and shape-memory CV (discontinued)

    2 firmwaresAVR32 (AT32UC3B)

  • Front panel of the monome teletype Eurorack module (cropped from the product photo)

    teletype

    Scriptable Eurorack event trigger and CV scripting module

    2 firmwaresAVR32 (AT32UC3B)

  • monome aleph sound computer, top panel with knobs, display and jacks, and the end panel with audio jacks

    aleph

    Open-source standalone sound computer (legacy)

    1 firmwareAVR32 (AT32UC3A) + Blackfin BF533 DSP

  • meadowphysics

    Cascading counter rhythm sequencer (discontinued)

    1 firmwareAVR32 (AT32UC3B)

  • walk

    Two-footswitch gate and logic module (legacy)

    1 firmwareATtiny24

Synthux Academy5

  • Simple Touch 2 board with the Touch FX faceplate fitted, seen from above

    Touch 2 (Simple Touch)

    Daisy Seed touch instrument with swappable faceplates, one board for many firmwares

    16 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Top-down view of the Spotykach front panel with its gold artwork, knobs, jacks and LED rings

    Spotykach

    Dual-deck looper with touch pads, CV and clock I/O, running open firmware on a Daisy Seed

    3 firmwares · 1 toolElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Simple Designer kit from above, with the populated board, knobs, switches and yellow wires

    Simple Designer

    Daisy Seed board with 80 control slots for building your own instrument

    2 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Top-down view of the Simple Fix board with a Daisy Seed, three knobs and two jacks fitted

    Simple Fix

    Small Daisy Seed prototyping board with a few knobs, switches and jacks

    2 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Front panel of the Audrey II synthesizer with its concentric rings and knobs

    Audrey II

    Feedback-driven Karplus-Strong drone synth on a Simple Designer board

    1 firmwareElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

Critter & Guitari7

  • Orange EYESY video synthesizer with five black knobs and wooden buttons on its top panel, seen at an angle

    EYESY

    Audio-reactive video synthesizer whose visuals are Python/Pygame modes

    4 firmwares · 3 toolsRaspberry Pi Compute Module 3, Linux

  • Organelle S2 in black, seen from above, with four knobs, a small OLED screen, a volume knob and a keyboard of maple keys

    Organelle M / S / S2

    Pure Data keyboard instrument on a Raspberry Pi Compute Module with open OS and patches

    3 firmwaresRaspberry Pi Compute Module 3 (Organelle M) and Compute Module 4 (Organelle S2), Linux

  • ETC (ETC Television Center)

    Earlier Critter & Guitari video synthesizer that runs Python/Pygame modes from a USB drive

    1 firmware · 1 tool

  • Original Organelle with a blue case, wooden keys, black knobs and an OLED screen, seen from above at an angle

    Organelle (original)

    The original 2016 Organelle, a Linux Pure Data instrument that stopped at OS 4.0

    2 firmwares

  • 5 Moons recorder in a wooden case with five faders, buttons and a USB-C cable plugged in

    5 Moons

    Five-track pocket recorder with a microSD-card OS and USB-C disk mode

    1 firmware

  • 201 Pocket Piano standing upright in a black case with a column of knobs and wooden buttons and a speaker grille at the top

    201 Pocket Piano

    Pocket synth with swappable Pure Data and Faust modes and patterns on microSD

    1 firmwareNXP i.MX6, Yocto Linux (per the project README)

  • Three Kaleidoloop units in different finishes, stacked, with knobs, buttons and a speaker grille

    Kaleidoloop

    Pocket loop recorder whose playback modes are Pure Data patches on a microSD card

    1 firmware

Mutable Instruments11

  • Front panel of the Mutable Instruments Clouds Eurorack module

    Clouds

    Texture synthesizer / granular processor (discontinued)

    5 firmwaresSTM32F4

  • Front panel of the Mutable Instruments Braids Eurorack module

    Braids

    Macro oscillator (discontinued)

    2 firmwaresSTM32F1

  • Front panel of the Mutable Instruments Plaits Eurorack module

    Plaits

    Macro oscillator (discontinued)

    2 firmwaresSTM32F3

  • Front panel of the Mutable Instruments Beads Eurorack module

    Beads

    Texture synthesizer / granular processor (discontinued)

    1 firmwareSTM32H7

  • Front panel of the Mutable Instruments Branches Eurorack module

    Branches

    Dual bernoulli gate (discontinued)

    1 firmwareATmega88 (AVR)

  • Front panel of the Mutable Instruments Marbles Eurorack module

    Marbles

    Random sampler / clocked random generator (discontinued)

    1 firmwareSTM32F4

  • Front panel of the Mutable Instruments Peaks Eurorack module

    Peaks

    Dual function generator / drum synth (discontinued)

    1 firmwareSTM32F1

  • Front panel of the Mutable Instruments Rings Eurorack module

    Rings

    Resonator (discontinued)

    1 firmwareSTM32F4

  • Front panel of the Mutable Instruments Stages Eurorack module

    Stages

    Segment generator / envelope (discontinued)

    1 firmwareSTM32F3

  • Front panel of the Mutable Instruments Yarns Eurorack module

    Yarns

    MIDI-to-CV interface (discontinued)

    1 firmwareSTM32F1

Teenage Engineering2

  • Straight-on top view of the original Teenage Engineering OP-1 portable synthesizer

    OP-1 (original)

    Portable synth, sampler and tape sequencer

    2 firmwares · 5 toolsAnalog Devices Blackfin

  • SP-1

    Unreleased stem player that doubles as an nRF52840 dev board

    4 firmwares · 1 toolNordic nRF52840

Novation4

  • Circuit

    Original 2015 groovebox with two synth and four drum tracks

    1 firmwareARM + DSP56300

  • Circuit Tracks

    Standalone groovebox with two synth, four drum and two MIDI tracks

    1 firmwareSTM32F745 + DSP56724

monome / Whimsical Raps1

  • monome crow Eurorack module, a narrow black panel with four jacks, seen at an angle

    crow

    Scriptable USB-to-CV Lua module (discontinued)

    3 firmwares · 3 toolsSTM32F722

Roland3

  • Top-down view of the Roland SP-404MKII sampler with its display showing a tempo of 84

    SP-404MKII

    16-pad sampler with onboard effects and pattern sequencer

    3 firmwares · 1 tool

  • JD-990

    1993 synthesizer module from Roland's JD-800 line

    1 tool

  • SP-808 Groove Sampler

    Zip-disk groove sampler with D-Beam and a step modulator

    1 firmwareRenesas H8S + ESP2 DSP

Akai Professional5

  • Akai Professional Force, top view

    Force

    Standalone clip-launching production instrument

    1 firmwareEmbedded Linux, shared by the standalone MPCs and Force

  • Akai Professional MPC500, top view

    MPC500

    Compact MPC sampler and sequencer

    1 firmware

Hermetic Modular1

  • Alchemy Lab without a panel, its six pots surrounded by lit RGB LED rings, beside the Spagyros and Echoa front panels

    Alchemy Lab

    12 HP Daisy-based Eurorack platform with field-programmable jacks, 102 RGB LEDs and an open MIT SDK

    4 firmwares · 1 toolSTM32H750 (Arm Cortex-M7, 480 MHz), Electrosmith Daisy ecosystem (64 MB SDRAM, 16 MB QSPI flash)

Zoom1

Electrosmith1

  • Front panel of the Electrosmith Patch.Init() Eurorack module (cropped from the product photo)

    Daisy Patch / Pod / Patch.init()

    Daisy-based Eurorack and desktop hardware for custom DSP firmware

    4 firmwaresElectrosmith Daisy Seed and Patch SM (STM32H750, Arm Cortex-M7)

Ornament & Crime (open hardware)1

16n faderbank project1

  • 16n faderbank controller, sixteen faders in a silver panel, seen from above at an angle

    16n faderbank / 16nx

    Open 16-fader MIDI / CV / i2c controller (Teensy 16n, RP2040 16nx)

    2 firmwares · 1 toolTeensy 3.2 (16n), RP2040 (16nx)

Expert Sleepers1

  • Front panel of the Expert Sleepers disting NT Eurorack module showing its start-up screen

    disting NT

    Algorithm-based DSP module with 12 inputs and 6 outputs

    1 firmware · 2 tools

PedalPCB1

  • PedalPCB Terrarium (PCB351) circuit board layout, top view

    Terrarium

    Daisy Seed pedal PCB with six knobs and two footswitches

    3 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

Polyend2

  • Angled view of the original Polyend Tracker standalone tracker-style sequencer and sampler

    Tracker

    Standalone tracker-style sequencer and sampler

    1 firmware · 1 tool

  • Front panel of the Polyend Preset Eurorack module, with its pad grid and nine encoders

    Preset

    Eurorack module with pads, knobs, buttons and CV I/O

    1 toolNXP MK20DX256

Sequential Circuits3

4ms Company1

  • Front panel of the 4ms Meta Module Eurorack module with its colour display showing a voice page

    MetaModule

    Virtual modular host that runs ported VCV-style plugins in a module

    1 firmware · 1 tool

1010music2

Arturia1

  • Top-down view of the Arturia MicroFreak hybrid synthesizer with its touch keyboard (cropped from the product photo)

    MicroFreak

    Hybrid digital/analog paraphonic synth

    2 firmwares

Befaco / Rebel Technology1

  • Befaco Lich, front panel

    Lich / Witch (OpenWare)

    OWL-platform modules that load patches from a library

    2 firmwaresSTM32 (Rebel Technology OWL)

Chase Bliss1

  • Top-down view of the Chase Bliss CHOMPI sampler with its handle, knobs and 14-key keyboard (cropped from the product photo)

    CHOMPI

    Chromatic sampler and tape-music instrument

    2 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

PaintAudio1

Spin Semiconductor1

  • FV-1 based pedals

    Pedals built around the Spin FV-1 DSP chip

    2 toolsSpin FV-1 DSP

Yamaha2

  • Front view of the Yamaha DX9 four-operator FM synthesizer, from Yamaha's 50th-anniversary synthesizer chronology

    DX9

    Four-operator FM synth

    1 firmware

  • MU2000

    64-part XG tone generator with sampler and plug-in slots

    1 toolHitachi SH7043 with two Yamaha SWP30

attowatt1

  • attowatt i2c2midi MK2 Eurorack module, front panel and angled view showing the Teensy board

    i2c2midi

    Open DIY 2HP Teletype expander that speaks i2c and MIDI

    1 firmwareTeensy 3.2 / 3.6 / 4.1

Behringer1

  • Top-down view of the Behringer Neutron semi-modular analog synthesizer

    Neutron

    Semi-modular analog synth

    1 firmwareSTM32 (Cortex-M0)

Brendon Cassidy (bpcmusic)1

  • TELEXo / TELEXi (TXo, TXi)

    Open DIY Teletype expanders: output (TXo) and input (TXi) over i2c

    1 firmwareTeensy 3.2 / 3.6

Cleveland Music Co.1

  • Front view of the assembled Cleveland Music Co. Hothouse DSP pedal in a white enclosure

    Hothouse DSP Pedal Kit

    Stereo DIY digital effects pedal kit for the Daisy Seed

    1 firmwareElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

Dirtywave1

  • Top-down view of the Dirtywave M8 tracker (cropped from the product photo)

    M8 Headless

    Full M8 tracker on a bare Teensy 4.1 with a host display client

    1 firmwareTeensy 4.1

Ensoniq1

  • Mirage

    1984 keyboard sampler

    1 firmware

GuitarML1

  • Assembled GuitarML Funbox v3 pedal with six knobs, three toggle switches and two footswitches

    Funbox

    Stereo DIY guitar pedal platform for the Daisy Seed

    1 firmwareElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

HAGIWO1

  • MOD1

    4HP Arduino Nano Eurorack module for custom CV and gate sketches

    1 firmwareArduino Nano (ATmega328P)

LPZW.modules1

  • TRAM8

    MIDI to eight gates and velocity CV converter

    1 firmwareATmega8A

MeloAudio1

  • MeloAudio MIDI Commander USB MIDI foot controller with ten footswitches, angled view

    MIDI Commander

    Eight-button MIDI foot controller with a small display

    1 firmwareSTM32F103

nozoid1

  • Front panel of the Nozoid Nozori 68 Eurorack module (cropped from the product photo)

    Nozori

    Multi-module platform with open Arduino firmware

    1 firmwareArduino IDE firmware

Oberheim1

  • Matrix-1000

    Rack-mount analog polysynth module

    1 firmwareMotorola 6809

Shantea Controls1

  • OpenDeck L board (RP2040) with input and output header pads, angled top view

    OpenDeck boards

    Open MIDI and OSC controller platform for custom hardware

    1 firmwareRP2040, ESP32-S3, STM32, nRF, Teensy 4 (Zephyr RTOS)

Synthstrom Audible1

  • Front view of the Synthstrom Deluge groovebox with its pad grid and wooden side cheeks

    Deluge

    Portable sequencer, synthesizer and sampler

    1 firmwareRenesas RZ/A1L (Arm Cortex-A9)

Eurorack & modular34

  • Music Thing Modular Workshop System in its case, seen from above, with the Workshop Computer module at the left of the panel

    Workshop System Computer

    Music Thing Modular

    RP2040 module whose firmware lives on swappable program cards

    133 firmwares · 1 toolRP2040

  • Noise Engineering Legio platform pictured with the Librae Legio firmware panel (black panel render on transparent background)

    Legio

    Noise Engineering

    6 HP stereo oscillator and effects platform with swappable firmwares

    26 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Noise Engineering Versio platform pictured with the Desmodus Versio firmware panel (black panel render on transparent background)

    Versio

    Noise Engineering

    10 HP stereo effects and DSP platform with swappable firmwares

    26 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Noise Engineering Alia platform pictured with the Basimilus Iteritas Alia firmware panel (black panel render on transparent background)

    Alia

    Noise Engineering

    10 HP oscillator and voice platform with swappable firmwares

    7 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • monome crow Eurorack module, a narrow black panel with four jacks, seen at an angle

    crow

    monome / Whimsical Raps

    Scriptable USB-to-CV Lua module (discontinued)

    3 firmwares · 3 toolsSTM32F722

  • Alchemy Lab without a panel, its six pots surrounded by lit RGB LED rings, beside the Spagyros and Echoa front panels

    Alchemy Lab

    Hermetic Modular

    12 HP Daisy-based Eurorack platform with field-programmable jacks, 102 RGB LEDs and an open MIT SDK

    4 firmwares · 1 toolSTM32H750 (Arm Cortex-M7, 480 MHz), Electrosmith Daisy ecosystem (64 MB SDRAM, 16 MB QSPI flash)

  • Front panel of the Mutable Instruments Clouds Eurorack module

    Clouds

    Mutable Instruments

    Texture synthesizer / granular processor (discontinued)

    5 firmwaresSTM32F4

  • Front panel of the Electrosmith Patch.Init() Eurorack module (cropped from the product photo)

    Daisy Patch / Pod / Patch.init()

    Electrosmith

    Daisy-based Eurorack and desktop hardware for custom DSP firmware

    4 firmwaresElectrosmith Daisy Seed and Patch SM (STM32H750, Arm Cortex-M7)

  • Front panel of the Expert Sleepers disting NT Eurorack module showing its start-up screen

    disting NT

    Expert Sleepers

    Algorithm-based DSP module with 12 inputs and 6 outputs

    1 firmware · 2 tools

  • white whale

    monome

    Probabilistic grid step sequencer (discontinued)

    3 firmwaresAVR32 (AT32UC3B)

  • Front panel of the monome ansible Eurorack module (cropped from the product photo)

    ansible

    monome

    Grid / arc / Teletype / MIDI companion module (discontinued)

    2 firmwaresAVR32 (AT32UC3B)

  • Front panel of the Mutable Instruments Braids Eurorack module

    Braids

    Mutable Instruments

    Macro oscillator (discontinued)

    2 firmwaresSTM32F1

  • earthsea

    monome

    Pattern-recording grid keyboard and shape-memory CV (discontinued)

    2 firmwaresAVR32 (AT32UC3B)

  • Befaco Lich, front panel

    Lich / Witch (OpenWare)

    Befaco / Rebel Technology

    OWL-platform modules that load patches from a library

    2 firmwaresSTM32 (Rebel Technology OWL)

  • Front panel of the 4ms Meta Module Eurorack module with its colour display showing a voice page

    MetaModule

    4ms Company

    Virtual modular host that runs ported VCV-style plugins in a module

    1 firmware · 1 tool

  • Front panel of the Mutable Instruments Plaits Eurorack module

    Plaits

    Mutable Instruments

    Macro oscillator (discontinued)

    2 firmwaresSTM32F3

  • Front panel of the monome teletype Eurorack module (cropped from the product photo)

    teletype

    monome

    Scriptable Eurorack event trigger and CV scripting module

    2 firmwaresAVR32 (AT32UC3B)

  • Front panel of the Mutable Instruments Beads Eurorack module

    Beads

    Mutable Instruments

    Texture synthesizer / granular processor (discontinued)

    1 firmwareSTM32H7

  • Front panel of the 1010music Bitbox Micro in silver, with a waveform on its touchscreen

    Bitbox Micro

    1010music

    18 HP touchscreen sampler module

    1 firmware

  • Front panel of the Mutable Instruments Branches Eurorack module

    Branches

    Mutable Instruments

    Dual bernoulli gate (discontinued)

    1 firmwareATmega88 (AVR)

  • attowatt i2c2midi MK2 Eurorack module, front panel and angled view showing the Teensy board

    i2c2midi

    attowatt

    Open DIY 2HP Teletype expander that speaks i2c and MIDI

    1 firmwareTeensy 3.2 / 3.6 / 4.1

  • Front panel of the Mutable Instruments Marbles Eurorack module

    Marbles

    Mutable Instruments

    Random sampler / clocked random generator (discontinued)

    1 firmwareSTM32F4

  • meadowphysics

    monome

    Cascading counter rhythm sequencer (discontinued)

    1 firmwareAVR32 (AT32UC3B)

  • Front panel of the Nozoid Nozori 68 Eurorack module (cropped from the product photo)

    Nozori

    nozoid

    Multi-module platform with open Arduino firmware

    1 firmwareArduino IDE firmware

  • Front panel of the Mutable Instruments Peaks Eurorack module

    Peaks

    Mutable Instruments

    Dual function generator / drum synth (discontinued)

    1 firmwareSTM32F1

  • Front panel of the Polyend Preset Eurorack module, with its pad grid and nine encoders

    Preset

    Polyend

    Eurorack module with pads, knobs, buttons and CV I/O

    1 toolNXP MK20DX256

  • Front panel of the Mutable Instruments Rings Eurorack module

    Rings

    Mutable Instruments

    Resonator (discontinued)

    1 firmwareSTM32F4

  • Front panel of the Mutable Instruments Stages Eurorack module

    Stages

    Mutable Instruments

    Segment generator / envelope (discontinued)

    1 firmwareSTM32F3

  • TELEXo / TELEXi (TXo, TXi)

    Brendon Cassidy (bpcmusic)

    Open DIY Teletype expanders: output (TXo) and input (TXi) over i2c

    1 firmwareTeensy 3.2 / 3.6

  • TRAM8

    LPZW.modules

    MIDI to eight gates and velocity CV converter

    1 firmwareATmega8A

  • walk

    monome

    Two-footswitch gate and logic module (legacy)

    1 firmwareATtiny24

  • Front panel of the Mutable Instruments Yarns Eurorack module

    Yarns

    Mutable Instruments

    MIDI-to-CV interface (discontinued)

    1 firmwareSTM32F1

Synths26

  • M-VAVE FM-1 FM synthesizer, top view

    FM-1

    M-VAVE

    Pocket 6-operator FM synth, 27 keys, colour screen, TRS MIDI

    75 firmwares · 10 toolsJieLi AC791N (WL82), dual-core pi32v2

  • Top-down view of the Korg prologue analog polysynth

    prologue

    Korg

    8- or 16-voice analog polysynth with a Multi-Engine that accepts logue SDK units

    21 firmwaresARM Cortex-M4 (STM32F401)

  • Top-down view of the assembled Korg Nu:Tekt NTS-1 digital kit

    Nu:Tekt NTS-1 digital kit

    Korg

    Build-it-yourself programmable synth kit with logue SDK oscillator and effect slots

    12 firmwares · 1 toolARM Cortex-M4 (STM32F446)

  • M-VAVE SMK-37 Pro MIDI keyboard, top view

    SMK-37 Pro / Elite

    M-VAVE

    37-key keyboard with built-in FM synth, 16 RGB pads, 8 encoders, 4 faders

    8 firmwares · 1 toolJieLi AC791N (WL82), dual-core pi32v2

  • Top-down view of the assembled Korg NTS-1 digital kit mkII with its 18-key touch keyboard

    Nu:Tekt NTS-1 digital kit mkII

    Korg

    Build-it-yourself programmable synth kit with a multitouch keyboard, sequencer and logue SDK 2 units

    8 firmwaresARM Cortex-M7 (STM32H725)

  • Straight-on top view of the original Teenage Engineering OP-1 portable synthesizer

    OP-1 (original)

    Teenage Engineering

    Portable synth, sampler and tape sequencer

    2 firmwares · 5 toolsAnalog Devices Blackfin

  • Top-down view of the Korg minilogue xd keyboard

    minilogue xd

    Korg

    4-voice analog polysynth with a Multi-Engine that accepts logue SDK units

    4 firmwaresARM Cortex-M4 (STM32F401)

  • Elektron Digitone II, top view

    Digitone II

    Elektron

    16-voice FM synth

    2 firmwaresColdFire + SHARC+ DSP (ADSP-21569)

  • Top-down view of the Arturia MicroFreak hybrid synthesizer with its touch keyboard (cropped from the product photo)

    MicroFreak

    Arturia

    Hybrid digital/analog paraphonic synth

    2 firmwares

  • volca bass

    Korg

    Compact analog bass machine with a step sequencer

    1 firmware · 1 tool

  • 201 Pocket Piano standing upright in a black case with a column of knobs and wooden buttons and a speaker grille at the top

    201 Pocket Piano

    Critter & Guitari

    Pocket synth with swappable Pure Data and Faust modes and patterns on microSD

    1 firmwareNXP i.MX6, Yocto Linux (per the project README)

  • Elektron Analog Keys, angled view

    Analog Keys

    Elektron

    4-voice analog keyboard synth

    1 firmwareColdFire (MCF5441x)

  • Front panel of the Audrey II synthesizer with its concentric rings and knobs

    Audrey II

    Synthux Academy

    Feedback-driven Karplus-Strong drone synth on a Simple Designer board

    1 firmwareElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Front view of the Yamaha DX9 four-operator FM synthesizer, from Yamaha's 50th-anniversary synthesizer chronology

    DX9

    Yamaha

    Four-operator FM synth

    1 firmware

  • JD-990

    Roland

    1993 synthesizer module from Roland's JD-800 line

    1 tool

  • Matrix-1000

    Oberheim

    Rack-mount analog polysynth module

    1 firmwareMotorola 6809

  • Top-down view of the Korg microKORG2 with its 37 mini keys

    microKORG2

    Korg

    Virtual analog synth and vocoder with logue SDK oscillator and effect units

    1 firmwareARM Cortex-A7 (i.MX6ULZ)

  • MU2000

    Yamaha

    64-part XG tone generator with sampler and plug-in slots

    1 toolHitachi SH7043 with two Yamaha SWP30

  • Top-down view of the Behringer Neutron semi-modular analog synthesizer

    Neutron

    Behringer

    Semi-modular analog synth

    1 firmwareSTM32 (Cortex-M0)

  • Front view of the Sequential Circuits Prophet-600 six-voice analog polysynth with wooden end cheeks

    Prophet-600

    Sequential Circuits

    Six-voice analog polysynth

    1 firmwareZ80

  • RADIAS

    Korg

    Four-timbre virtual analog synth with vocoder

    1 tool

  • Take 5

    Sequential Circuits

    Five-voice compact analog polysynth

    1 tool

  • Top-down view of the Korg volca fm digital FM synthesizer

    volca fm

    Korg

    Compact 6-operator FM synth with 16-step sequencer

    1 firmware

Samplers16

  • Elektron Octatrack MKII, top view

    Octatrack MKI / MKII

    Elektron

    8-track performance sampler

    8 firmwares · 4 toolsColdFire + Motorola DSP56300

  • Elektron Digitakt II, top view

    Digitakt II

    Elektron

    16-track sampler

    2 firmwares · 2 toolsColdFire + SHARC+ DSP (ADSP-21569)

  • Top-down view of the Roland SP-404MKII sampler with its display showing a tempo of 84

    SP-404MKII

    Roland

    16-pad sampler with onboard effects and pattern sequencer

    3 firmwares · 1 tool

  • Top-down view of the Spotykach front panel with its gold artwork, knobs, jacks and LED rings

    Spotykach

    Synthux Academy

    Dual-deck looper with touch pads, CV and clock I/O, running open firmware on a Daisy Seed

    3 firmwares · 1 toolElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Top-down view of the Chase Bliss CHOMPI sampler with its handle, knobs and 14-key keyboard (cropped from the product photo)

    CHOMPI

    Chase Bliss

    Chromatic sampler and tape-music instrument

    2 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Elektron Model:Samples, front view

    Model:Samples

    Elektron

    6-track sample-based groovebox

    2 firmwaresColdFire (MCF5441x)

  • Top-down view of the Korg volca sample digital sample sequencer

    volca sample

    Korg

    10-part sample player with 16-step sequencer

    2 firmwares

  • 5 Moons recorder in a wooden case with five faders, buttons and a USB-C cable plugged in

    5 Moons

    Critter & Guitari

    Five-track pocket recorder with a microSD-card OS and USB-C disk mode

    1 firmware

  • Three Kaleidoloop units in different finishes, stacked, with knobs, buttons and a speaker grille

    Kaleidoloop

    Critter & Guitari

    Pocket loop recorder whose playback modes are Pure Data patches on a microSD card

    1 firmware

  • Mirage

    Ensoniq

    1984 keyboard sampler

    1 firmware

  • Akai Professional MPC500, top view

    MPC500

    Akai Professional

    Compact MPC sampler and sequencer

    1 firmware

  • Akai Professional MPC1000, top view

    MPC1000 / 2500

    Akai Professional

    MPC1000-series sampler and sequencer

    1 firmware

  • Akai Professional MPC2000XL, top view

    MPC2000 / 2000XL

    Akai Professional

    MPC sampler and sequencer in Classic and XL versions

    1 firmware

  • SP-808 Groove Sampler

    Roland

    Zip-disk groove sampler with D-Beam and a step modulator

    1 firmwareRenesas H8S + ESP2 DSP

DIY platforms8

  • Simple Touch 2 board with the Touch FX faceplate fitted, seen from above

    Touch 2 (Simple Touch)

    Synthux Academy

    Daisy Seed touch instrument with swappable faceplates, one board for many firmwares

    16 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Front view of the monome norns sound computer with its OLED screen, knobs and buttons

    norns / norns shield / Fates

    monome

    Open Lua + SuperCollider sound computer on Raspberry Pi hardware

    4 firmwares · 1 toolRaspberry Pi (CM3 in norns; 3B, 3B+, 4B in shield and Fates), Linux

  • Organelle S2 in black, seen from above, with four knobs, a small OLED screen, a volume knob and a keyboard of maple keys

    Organelle M / S / S2

    Critter & Guitari

    Pure Data keyboard instrument on a Raspberry Pi Compute Module with open OS and patches

    3 firmwaresRaspberry Pi Compute Module 3 (Organelle M) and Compute Module 4 (Organelle S2), Linux

  • Original Organelle with a blue case, wooden keys, black knobs and an OLED screen, seen from above at an angle

    Organelle (original)

    Critter & Guitari

    The original 2016 Organelle, a Linux Pure Data instrument that stopped at OS 4.0

    2 firmwares

  • Simple Designer kit from above, with the populated board, knobs, switches and yellow wires

    Simple Designer

    Synthux Academy

    Daisy Seed board with 80 control slots for building your own instrument

    2 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Top-down view of the Simple Fix board with a Daisy Seed, three knobs and two jacks fitted

    Simple Fix

    Synthux Academy

    Small Daisy Seed prototyping board with a few knobs, switches and jacks

    2 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • MOD1

    HAGIWO

    4HP Arduino Nano Eurorack module for custom CV and gate sketches

    1 firmwareArduino Nano (ATmega328P)

  • OpenDeck L board (RP2040) with input and output header pads, angled top view

    OpenDeck boards

    Shantea Controls

    Open MIDI and OSC controller platform for custom hardware

    1 firmwareRP2040, ESP32-S3, STM32, nRF, Teensy 4 (Zephyr RTOS)

Controllers6

  • Novation Launchpad Pro (MK1) 8x8 RGB pad grid controller, angled front view

    Launchpad Pro (MK1)

    Novation

    8x8 pad grid controller with USB and DIN MIDI

    6 firmwares · 2 toolsSTM32

  • Top-down view of the Korg SQ-64 step sequencer with its 64 pads

    SQ-64

    Korg

    Polyphonic step sequencer with CV, gate and MIDI

    3 firmwares · 3 tools

  • monome grid controller, a flat aluminium grid of backlit buttons, lit and connected by a USB cable

    grid

    monome

    Backlit button-grid controller, 40h to 2022-era grid one / zero

    5 firmwaresAVR8 (40h, monome kit), RP2040 (2022 and later)

  • 16n faderbank controller, sixteen faders in a silver panel, seen from above at an angle

    16n faderbank / 16nx

    16n faderbank project

    Open 16-fader MIDI / CV / i2c controller (Teensy 16n, RP2040 16nx)

    2 firmwares · 1 toolTeensy 3.2 (16n), RP2040 (16nx)

  • monome arc, a four-encoder controller with ring LEDs around each knob, connected by a USB cable

    arc

    monome

    Four-encoder knob controller with LED rings

    2 firmwares

Cross-device tools4

Drum machines4

  • Top-down view of the Korg drumlogue drum machine

    drumlogue

    Korg

    Hybrid analog/digital drum machine with logue SDK units

    15 firmwares

  • Machinedrum

    Elektron

    16-track drum synthesizer and sequencer

    2 firmwares · 2 toolsColdFire (MCF5206e) + 2x Motorola DSP56303

  • Top-down view of the Korg volca drum digital percussion synthesizer

    volca drum

    Korg

    6-part digital percussion synth with motion sequencing

    1 firmware

Grooveboxes9

  • Elektron Model:Cycles, top view

    Model:Cycles

    Elektron

    6-track FM groovebox

    4 firmwares · 1 toolColdFire (MCF5441x)

  • Top-down view of the red Korg electribe sampler (Electribe 2 Sampler, a member of the Electribe 2 family)

    Electribe 2 / 2 Sampler

    Korg

    Pattern-based groovebox in synth and sampler variants

    2 firmwaresTI Sitara CPU + Blackfin DSP

  • Elektron Syntakt, top view

    Syntakt

    Elektron

    12-track drum and synth groovebox

    2 firmwares2x ColdFire (MCF5441x)

  • Angled view of the original Polyend Tracker standalone tracker-style sequencer and sampler

    Tracker

    Polyend

    Standalone tracker-style sequencer and sampler

    1 firmware · 1 tool

  • Circuit

    Novation

    Original 2015 groovebox with two synth and four drum tracks

    1 firmwareARM + DSP56300

  • Circuit Tracks

    Novation

    Standalone groovebox with two synth, four drum and two MIDI tracks

    1 firmwareSTM32F745 + DSP56724

  • Front view of the Synthstrom Deluge groovebox with its pad grid and wooden side cheeks

    Deluge

    Synthstrom Audible

    Portable sequencer, synthesizer and sampler

    1 firmwareRenesas RZ/A1L (Arm Cortex-A9)

  • Akai Professional Force, top view

    Force

    Akai Professional

    Standalone clip-launching production instrument

    1 firmwareEmbedded Linux, shared by the standalone MPCs and Force

  • Top-down view of the Dirtywave M8 tracker (cropped from the product photo)

    M8 Headless

    Dirtywave

    Full M8 tracker on a bare Teensy 4.1 with a host display client

    1 firmwareTeensy 4.1

Other4

  • Orange EYESY video synthesizer with five black knobs and wooden buttons on its top panel, seen at an angle

    EYESY

    Critter & Guitari

    Audio-reactive video synthesizer whose visuals are Python/Pygame modes

    4 firmwares · 3 toolsRaspberry Pi Compute Module 3, Linux

  • SP-1

    Teenage Engineering

    Unreleased stem player that doubles as an nRF52840 dev board

    4 firmwares · 1 toolNordic nRF52840

  • ETC (ETC Television Center)

    Critter & Guitari

    Earlier Critter & Guitari video synthesizer that runs Python/Pygame modes from a USB drive

    1 firmware · 1 tool

  • monome aleph sound computer, top panel with knobs, display and jacks, and the end panel with audio jacks

    aleph

    monome

    Open-source standalone sound computer (legacy)

    1 firmwareAVR32 (AT32UC3A) + Blackfin BF533 DSP

Pedals & multi-FX6

  • Top-down view of the assembled Korg NTS-3 kaoss pad kit

    Nu:Tekt NTS-3 kaoss pad kit

    Korg

    Build-it-yourself Kaoss Pad effects kit with logue SDK generic effect slots

    3 firmwaresARM Cortex-M7 (STM32H725)

  • PedalPCB Terrarium (PCB351) circuit board layout, top view

    Terrarium

    PedalPCB

    Daisy Seed pedal PCB with six knobs and two footswitches

    3 firmwaresElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • FV-1 based pedals

    Spin Semiconductor

    Pedals built around the Spin FV-1 DSP chip

    2 toolsSpin FV-1 DSP

  • Assembled GuitarML Funbox v3 pedal with six knobs, three toggle switches and two footswitches

    Funbox

    GuitarML

    Stereo DIY guitar pedal platform for the Daisy Seed

    1 firmwareElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

  • Front view of the assembled Cleveland Music Co. Hothouse DSP pedal in a white enclosure

    Hothouse DSP Pedal Kit

    Cleveland Music Co.

    Stereo DIY digital effects pedal kit for the Daisy Seed

    1 firmwareElectrosmith Daisy Seed (STM32H750, Arm Cortex-M7)

Foot controllers3