Review

Review every change before your DAW hears it.

Chorus stages what it proposes. You see it as a diff on the piano roll, hear it, and apply all of it, one clip, or one bar.

Add ghost notes on the snare and swing the offbeat hats, bars 1–4
◇Read Drums › Beat57 notes
◇Read Drum Rack5 pads
✎Edited Drums › Beat+11 −1 ~15

Added ghost snares on the last 16th of beats 2 and 4, pushed every offbeat hat a 64th late and a little softer, and a pickup kick into bar 4. Kick and clap are untouched.

1 clip changed Review
Drums › Beat+11 −1 ~15
Send follow-up
Drums › Beat↑
ChangesSessionMixerBeat
Drums›Beat4 bars
+11−1~15Proposed by ChorusRejectApply to Live
1234
Hihat Open
Hihat Closed
Clap
Snare
Kick 808
Velocity
Hear the diff
Drums · bars 1–4 · 112 BPM
Diff

Green, red, amber. Added notes in green, removed in red, moved or re-velocitied in amber, with a velocity lane underneath. The same colors run through the whole app.

+11−1~15
Chorus
A bassline proposal under review: added notes green, removed red, moved amber, with the bar review widget
Bar by bar

Keep the bars you like. The review widget walks the changed bars. Apply one and it becomes part of the clip; reject one and that bar goes back exactly as it was.

⌥↓ next change · ⌘Y apply bar · ⌘U reject bar

Drums›Beat4 of 4 bars to review
1234
Hihat Open
Hihat Closed
Clap
Snare
Kick 808
Bar 1+2 ~4Reject ⌘UApply ⌘Y
Changes

Everything pending, in one place. The Changes panel stacks every proposed clip as a small diff, with mix and device moves as before → after. Apply takes all of it.

Chorus
The Changes panel with several proposed clips stacked as diffs
History

Undo anything, any time. Each apply is a History entry with undo and redo, kept with the set across restarts. If your DAW refuses a step partway, Chorus finishes the change or puts it back.

Chorus
The History panel listing applied changes with undo

Review, in detail

Hear it first

In Live, play the proposal on your real instrument; Stop puts the original back. In either DAW, A/B it on the built-in synth.

Edit the proposal

Drag, resize, add and delete notes in the proposal itself before you apply it.

Hand edits go straight to your DAW

On a clip with nothing pending, your own edits write to Live or Logic directly, with History.

The overview strip

The whole clip in miniature above the editor, with changed bars marked; click one to jump to it.

Conflicts are caught

If you changed something in your DAW since, undo tells you what moved instead of overwriting it.

Shortcuts for everything

⌘⏎ apply, ⌘⌫ reject, and you can rebind any of them in Settings.

NextPlan → Build→

Try Chorus on your next session.

Free to download for macOS, for Ableton Live 12, Logic Pro 12 and FL Studio. Bring your own Anthropic key.