Sources.

15 instruments that play the part you write. Trumpet, violin, cello, sax, guitar, piano, drums and more.

Play one
Part
8ClClarinetD3–B♭6
PAN
GAIN
MIDI
Melody
Audio
0:00 / 0:00

After You’ve Gone · Creamer / Layton, 1918. The melody, generated. Pick the source that plays it.

§ Player

Hear them.

Winds

Clarinet (hand-cut instrument tile)
Clarinet
Flute (hand-cut instrument tile)
Flute
Alto sax (hand-cut instrument tile)
Alto sax
Tenor sax (hand-cut instrument tile)
Tenor sax
Soprano sax (hand-cut instrument tile)
Soprano sax

Brass

Trumpet (hand-cut instrument tile)
Trumpet
Trombone (hand-cut instrument tile)
Trombone
French horn (hand-cut instrument tile)
French horn

Sing, Sing, Sing · Prima / Goodman, 1937. Three sections: saxes, trumpets, trombones. Each section is its chairs summed (five saxes, four trumpets, four bones), and all thirteen chairs are generated.

§ 01 · In your DAW

It runs where you work.

Fifteen of the sources (winds, brass, strings, bass and guitar) load as dø1, a native instrument plugin for Logic Pro, Ableton Live, FL Studio, REAPER, Cubase and Studio One. Write the part in the piano roll you already use; the audio comes back on the track it came from.

Get the DAW plugin AU & VST3 · installs with Dø Desktop on macOS
§ 02 · Takes

Infinite takes and variations.

Every render is a new performance. Write the part once and generate it again (same notes, same settings, a different seed) and you get a different take, with its own timing, attack and phrasing. A sampler returns the same recording every time.

That is because the instrument is modelled, not sampled. The model learned how each one behaves: how the tone changes as a note is pushed, how the attack follows the articulation, what the top of the range costs the player. So a crescendo is one continuous performance, not three recordings crossfading.

Keep the take you like or render another. No 200 GB library, no keyswitch map: a 9 MB plugin.

23TpTrumpetE3–B♭5
Take 1 of 3 · seed 1111
0:00

One part. Three renders at the same settings, different seed. A sampler would return the same recording every time.

§ 03 · Timbre

Custom timbre control.

Drop any audio on the TIMBRE well and the part is performed in that tone. The reference can be another instrument, a voice or a noise; it is not sampled, and none of it ends up in the output.

The model reads the reference's brightness, roughness and spectral balance and plays the written line with them: a horn that sits inside an existing record, a string part matched to a mix, an instrument pushed somewhere it has never been.

Below, one sax part rendered four times from four references: bagpipes, a fart, a slot machine, a howl. Click one to hear the reference, then the sax it produced.

11SxSaxophoneD♭3–A♭5
0:00

Sax rendered with Bagpipes as the timbre reference.

§ All 15

The sources.

Strings

Brass

Woodwind

Keys

  • Acoustic piano
  • Electric piano
  • Vibraphone

Guitars

Voice

  • Lead vocal
  • Backing vocals
  • Choir
  • Synth vocal

Rhythm

  • Drum kit
  • Drums
  • Percussion

Electronic

  • Synth
  • Electronic

In your DAW.

dø1 is a native instrument plugin (Audio Unit and VST3) that puts fifteen of these sources on an instrument track in Logic Pro, Ableton Live, FL Studio, REAPER, Cubase and Studio One. Write the part in your piano roll; dø1 renders it and places the audio on the same track, as a take you can still edit rather than a bounced stem. It installs with Dø Desktop on macOS and is included with Pro. Get the plugin →

Questions.

Is this an AI instrument plugin or a VST?

Both. dø1 is an instrument plugin in Audio Unit and VST3 formats: insert it on a track, write MIDI, and it renders the part as audio on that same track, in Logic Pro, Ableton Live, FL Studio, REAPER, Cubase or Studio One. It ships inside Dø Desktop on macOS and is included with Pro. The same sources also play here in the browser, with nothing installed.

How is this different from a sample library?

A sample library plays back recordings and crossfades between dynamic layers. A model learns how the instrument behaves, so a crescendo is continuous rather than three recordings fading into one another, and there is nothing to download or load.

Which acoustic instruments are supported?

15 sources today: strings (violin, viola, cello, double bass, arco and pizzicato), brass (trumpet, muted trumpet, trombone, french horn, tuba), woodwinds (flute, clarinet, oboe, bassoon, saxophone), keys, guitars, voices, drums and percussion, plus string, brass and wind ensembles.

Can it play an instrument that is not on the list?

The list is the model's trained vocabulary, so a missing instrument is a training question rather than a setting. It is worth asking for: the architecture is not specific to these instruments.

Does it follow MIDI velocity and articulation?

Yes. Velocity moves timbre rather than only level, and articulations that genuinely change the sound (pizzicato, mute) are separate sources rather than effects applied afterwards.

Is it free?

The player on this page is free to try. The dø1 plugin is part of Pro ($12 a month), which also includes Dø Desktop; the details are on the pricing page.

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