Monoglyph Audio · VST3 and AU plugins for macOS and Windows

Plugins that treat
rhythm as a language.

Small, focused audio plugins. Each one does one thing and shows you exactly what it's doing to your sound.

Plugins

One idea per plugin.

Each one is engineered around a single idea and shares one language. Buy them separately, or together at checkout.

All plugins
  1. Strand

    Rhythmic gate

    Out now
  2. Cadence

    Pattern modulator

    Coming soon
  3. Refrain

    Pattern sequencer

    Out now

Strand

Rhythmic gate

Type a rhythm.Hear it gate.

A gate you program in one line of pattern notation. Euclid, alternation and probability are one symbol each. Mutate it with intent, let it evolve on the bar.

$39.99Try free for 14 days
Explore Strand

VST3 · AU · macOS and Windows · 14-day trial

Strand's editor: a drum loop folded onto one bar under a clave gate pattern

Engineering

Most plugins show you a picture of what they might be doing. Ours show you the engine.

A Monoglyph plugin is one idea carried all the way through: written as a library, drawn from the engine, tested in the hosts you use, and sold plainly. Six things we hold to, and how you can check each one.

  1. 01

    The display is the engine

    The interface doesn’t illustrate the audio thread, it reads it. The same code that moves a gate draws it, and your audio is on screen inside the effect.

    one groove function, shared by engine and display

  2. 02

    The engine is a library

    Every plugin’s core is plain C++ with no interface and no framework, tested on its own before a single knob exists. The plugin is a shell around it.

    1,544 checks · sanitizers in CI

  3. 03

    Deterministic

    Randomness is seeded, not rolled. Drift, probability and mutation repeat exactly. The same project sounds the same tomorrow, on another machine, in another host.

    hash-seeded · repeatable per bar

  4. 04

    Real-time safe

    Nothing allocates and nothing locks on the audio thread. A pattern change hands over atomically, on the cycle boundary, never mid-bar.

    atomic handoff · cycle-aligned

  5. 05

    Tested where you use it

    Validated the way hosts validate: pluginval at strictness 10 and Apple’s auval on every release build, sanitizer-checked tests on every commit, signed and notarised packages for macOS and Windows.

    pluginval 10 · auval · ASan/UBSan CI

  6. 06

    Open by default

    Presets are JSON you can read in a text editor. The notation is a public language, and the table on this site is the file the plugin ships, drawn by a port of its parser.

    JSON presets · TidalCycles notation · same notation file

Monoglyph

Two lines.
One standard.

Monoglyph Audio is the plugin line of Monoglyph Ltd, a software company in England, UK. Everything we ship is designed, written, tested and supported under one roof, and beyond a once-a-day licence check none of it phones home.

Based
England, UK
Founded
2026
Monoglyph AudioThis site

Small, focused audio plugins. VST3 and AU for macOS and Windows.

MidiSlayermidislayer.com →

A sight-reading trainer for musicians. Desktop app, macOS and Windows.

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