Performance Modelling Instruments

Performance over Playback

Rubato turns flat MIDI demos into expressive, human performances — real instruments, played the way you meant them.

Free during beta · macOS & Windows

First launch (unsigned during beta): on macOS right-click → Open; on Windows click More info → Run anyway.

The idea

Not samples. Not presets. Performances.

A sampler plays back a recording. Rubato plays your part. Its models listen to what you wrote — your timing, your dynamics, your phrasing — and perform it on a real instrument, note for note.

You keep composing the way you already do. Rubato makes it sound played.

How it works

From demo to performance in one pass

Compose the way you already do. Rubato does the performing.

1

Play

Write or play your MIDI in your DAW. Hear an instant preview of every note as you go.

2

Capture

Arm a section and play it through. Rubato captures your timing, dynamics, and phrasing.

3

Render

On stop, the instrument is performed in the cloud and dropped straight onto your timeline.

Available now

Nylon String Guitar

A warm, expressive nylon guitar — Rubato's first Performance Modelling Instrument, rendered by our own 48 kHz model. More instruments are on the way, each streamed straight into the Portal.

Rubato