A pro sound on your first night.

Proof is music software for Windows. Its AI prepares, suggests, mixes and teaches. You decide.

It runs on your PC.

Sound, mixing and stem separation are computed on your machine. Your sounds never leave it.

Your whole studio, inside.

Your sounds on the left, the song in the middle, and the Proof panel on the right, where the AI makes its suggestions.

Proof in its dark theme: the sound browser on the left, the song canvas and the channel rack in the middle, the history and the Proof panel on the right

Start from a song you love.

Proof reads its tempo and structure, then lays down drums, an 808 and chords. Never its melody or its vocals.

A base prepared from a song: the drums, the 808 and the chords in the canvas, and the « Ta base » card with Listen, Redo, Keep and Refuse

Your sounds, measured on your machine.

Proof sorts your samples by role, pitch and tempo. You hear them at the song's tempo before you drop them in.

Proof's sound browser: sounds sorted by role, pitch, length and tempo

Write a few notes. Proof suggests what comes next.

It shows up in grey. Tab keeps it, Esc clears it.

The piano roll: four grey notes proposed after the melody, and the continuation card with Keep and Refuse

Watch the sound flow.

The Mixer draws each track's real path to the output, and the sound passing through it, node by node.

The Mixer in Flow view during playback: each track goes through its fader, its inserts and a compressor, to the Master and the output, its waveform in every node

Proof measures before it mixes.

Every track is measured on your machine. Every proposed setting gives its reason.

The Proof panel trying the mix proposal on a copy of the song

Listen, then decide.

Before and after, at the same volume. Keep it or refuse it.

The mix proposal: eight settings on six channels, Before, After, Keep, Refuse

Montre-moi (“show me”) teaches you Proof.

Ask it to show you something: it lights up the real control, names the gesture and waits for you to do it. It never does it for you.

Montre-moi: a ring around the name of the Chords row, and the card that names the gesture

Everything can be undone.

Every AI action is one history entry. One Ctrl+Z takes it back.

Proof is coming to Windows.

The download link will be here. Proof's interface is in French for now.

The screens are real captures of Proof 1.0.3 in its dark theme, on the demo project; the grey continuation comes from a real Proof sequence. The laptop is a generic Windows PC, drawn in code for this page. The copilot, free-form Montre-moi requests and voice need an Anthropic API key; with one, the copilot sends the model the state of the project and your request, never your sounds. Without one, rules mix the song and Montre-moi follows written walkthroughs.