Artist-accurate MIDI, generated onto the track you are already working on.
Drums, melodies, countermelodies, 808s, chords and full song arrangements โ generated in the
style of specific artists, as original MIDI, in your project's own key and
tempo. Free, offline, and 100% AI-free.
Freally MIDI Master is free today, but it might not be free forever: future versions may be
sold.
CLAPVST3AUStandaloneWeb
๐ค
Artists, not genres
Most generators think in genres. "Trap" is not "Metro Boomin," and no mainstream tool has
heard of OsamaSon. Type a name and get patterns carrying that artist's actual signatures.
๐๏ธ
It follows your DAW
The plugin reads the host's tempo and time signature every block, so trap authored at 140
comes out at 92 in a 92 BPM project. Pin a tempo and yours wins instead.
๐ฅ
Five generators, plus Song Mode
Drums, Melody, Countermelody, Bassline and Chords โ plus Song Mode, which is not a sixth
generator but an arrangement that fills all five in.
๐ญ
Every artist has moods
Pick a mood and stay there, or leave it on Any and let each press walk that
artist's range. One artist writes more than one kind of record, and no seed could ever
cross between them.
๐ ๏ธ
Build a style of your own
Start from any artist, adjust what you care about, and save it โ it sits in the roster
beside the shipped ones and works exactly the same, because it is the same kind of
thing. Star the takes you like and it fits a style to them.
๐ฏ
Notes land on the track
No file to drag, no folder to hunt for. The plugin emits MIDI where you inserted it, in
the host's own time.
๐
Reproducible by seed
Every generation has a seed. Copy it, paste it, get the exact same beat back โ on any
machine, on any day. Determinism is enforced by the test suite.
๐
No AI, no account, no cloud
No models, no training data, no inference, and no network calls during generation. No
login and no telemetry. Everything happens on your machine โ including "train your own
style", which measures the takes you kept and writes the numbers back rather than
learning anything. A build with an AI or an HTTP client anywhere in its dependencies
fails the build.
In developmentPlugin pivot ยท 2026
v1.0.0RC — coming soonDownloads — coming soon
Status โ it is a plugin now
Freally MIDI Master began as a desktop app; v0.2.0 was that build. As of
29 July 2026 the desktop app is retired โ it is no longer built or
released. Nothing already installed stops working; it simply stops finding updates.
It is now a CLAP plugin, with VST3 and AU projected from it โ not for the
format's sake, but because a plugin is handed the host's tempo, time signature and playhead.
A generated pattern lands in the song you are actually writing, instead of at whatever tempo
the artist happens to be authored at.
Where it has been loaded
It loads and generates in Ableton Live 12 (VST3) and
FL Studio (CLAP). Reaper, Bitwig and Logic are not yet tested. The
standalone build runs the same plugin in its own window with no DAW involved.
Windows
macOS
Linux (editor in progress)
โ There is nothing to download yet.v1.0.0RC is next,
and it is being tested by hand right now โ every host, every OS, and the things no test
suite can judge. A plugin that half-works inside somebody's session is worse than one that
is not there, so it ships when that matrix is green and not before.
The engine is rule-based, not trained
There is no AI in this product. No models, no training data, no inference,
no network calls during generation. The engine is deterministic procedural code reading
hand-authored style parameters derived from published research.
That is a legal architecture as much as a technical one: nothing here is copied MIDI,
sampled audio, or a transcription of anyone's record, and there is no feature that recreates
a specific song. Artist names are descriptive style references only.
The music you make with it is yours, with no royalty and no attribution
requirement. Freally MIDI Master itself is proprietary, All Rights Reserved, and its
source code is private โ you may not redistribute it. It is not open source.
The road to 1.0
Every build lands a whole capability. Nothing ships half-done.
v0.3.0 โ Plugin pivot
CLAP, with VST3 and AU projected from it. Loads in Ableton and FL Studio.
Done
v0.4.0 โ Unlimited undo
Every session change, one keystroke back โ no depth limit.
Done
v0.5.0 โ It makes a sound
A sampler behind the generators, your own one-shots on any part, and a transport that plays inside the plugin.
Done
v0.5.5 โ It plays an instrument
A synthesizer behind every part, a factory library of 2,729,088 sounds you can browse by instrument and genre, a sample-pack maker, and a keyboard you can play at any time.
Done
v0.5.7 โ A vast, ultra-realistic library
Twenty-four new synthesis engines and 750 new instruments โ 975 in all, from concert grands and bowed sections to modelled analog circuits โ each one measured against the real thing it is named for. 1,614,600 sounds, and still not one file on your disk.
Done
v0.6.0 โ Your sample library
A folder tree with preview, starred favourites, drag-to-pad and reverse โ plus drop a MIDI file in and it works out which parts are in it.
Done
v0.7.0 โ The arrangement, like a DAW
Clips drawn from their own notes, zoom, multi-select, trim and clone โ and drag the whole song out, one track per part.
Done
v0.8.0 โ 67 genres, 2,000 artists
The full roster โ the underground beside the mainstream โ every one a hand-written style model. The 67 genres are written and so are 1,250 artists and producers; the rest are being encoded from the research a volume at a time.
Done
v0.9.0 โ Polish and hardening
Every state designed and every edge handled: accessibility, HiDPI, crash safety, cold start under three seconds.
Done
v1.0.0 beta โ Feature complete
Everything 1.0 promises, plus collaboration rooms and Freally MixSir, the phone companion. Still no download โ this is the build that gets tested by hand.
Done
v1.0.0RC โ Release candidate
Re-Dream lands โ every generation arrives as four, the take you have plus three
dreamed after it, auditioned in the track before one replaces the part. Then the
manual test pass, worked end to end on real hardware in a real DAW.
now
v1.0.0 โ Downloads open
All five generators plus Song Mode, collaboration rooms and MixSir, every format, on all three platforms. The first build anyone can install โ after an optimization pass, a simplification pass, a code review and a security review, with both self-hosted CI runners green.
goal
Privacy
No accounts. No telemetry. Nothing about you, your projects or your output is ever
transmitted. Generation, playback, import and export are entirely local.
The plugin makes no outbound connections at all. The two that used to
exist โ a launch-time update check and an opt-in crash report โ belonged to the desktop
app and were removed with it. A plugin is installed and updated by whoever installs
plugins.
The web app is delivered over the network; what you make is not. A page
has to be fetched โ the app itself, and the style data it generates from. That is the
whole of it. Generation runs on your own machine, in your own browser; your beats, your
seeds and anything you import stay there and are never uploaded. After one visit the tab
works with the network switched off, which is closer to offline than most software
manages.
Collaboration is the one exception, and only if you use it. Rooms connect
your machine directly to the people you invite. If you save someone as a buddy, a small
service can tell you when they are online โ and it is told nothing worth knowing: a key
that changes every few minutes, and an address encrypted to a secret only the two of you
hold. It cannot read it, cannot list who is there, and cannot work out who knows whom.
Turn it off, or never save a buddy, and you paste a code instead โ which is how rooms
work anyway.
Enforced by two build gates rather than promised: no HTTP client is compiled
into the plugin โ still true, because the collaboration service is reached by a
separate program, never by the plugin your DAW loads โ and the interface itself is
driven through a generation on every commit and fails if it attempts a single request off
the machine. Crash reports are written to your own
disk and never sent anywhere.
One thing that is coming, said now rather than when it ships. The
collaboration feature โ rooms, in development and not installed by anything today โ needs
to learn your machine's public address before two people can connect directly, which is
what a STUN server is for. When it lands, opening or joining a room will contact one; this
build names Cloudflare and Google. Such a server learns only that some address is using a
WebRTC application โ not who you are talking to, and not what you send โ and nothing is
contacted until you open or join a room. The sentence above stays true for the plugin as
it ships today.