Chorus for Logic Pro
Chorus reads your Logic project and proposes notes, mix moves, plug-in settings, markers and audio region edits. You review each change, apply it to Logic, and undo anything.
Chorus is the AI agent inside your DAW, for Ableton Live, Logic Pro and FL Studio. It proposes changes you hear, review and undo. Works with Logic Pro 12 on macOS.
Things to ask in Logic
- “Write a bassline for this section that follows the chords”
- “Humanize the hi-hats in the second verse region”
- “Pull the vocal down 2 dB and send more to the reverb bus”
- “Add markers for intro, verse, chorus and bridge”
- “Quantize the guitar region to 1/16 at 70%”
What Chorus can do in Logic
Write and edit MIDI
Notes in MIDI regions, new software instrument tracks and new regions, shown as a diff on the piano roll.
Mix
Track volume, pan, mute, solo and names, the master volume, and sends to your aux returns.
Plug-ins
Sliders, switches and menus on your plug-ins, from Logic's own Controls view.
Arrange
Markers, inserting bars, and copying regions to a bar on their track.
Edit audio regions
Flex on or off and the track's flex mode, transpose, fine tune, gain, and quantize through Flex.
Logic support is in beta. Applying a change takes a few seconds per region because Chorus works through Logic's interface. Placing audio from plugins comes later.
Set up in a few minutes
- Step 1
Install Chorus
Download Chorus and drag it into Applications.
- Step 2
Choose Logic Pro
Open Chorus, pick Logic Pro, then open the project you want to work on.
- Step 3
Allow Chorus Connect
Logic has no plug-in interface for this, so Chorus works through macOS Accessibility. Turn on Chorus Connect in System Settings → Privacy & Security → Accessibility, once.
Logic's own AI features, and what Chorus adds
Logic Pro 12 (January 2026) added Synth Player and Chord ID, which identifies chords in audio or MIDI so Session Players can follow them. Session Players (Drummer, Bass Player, Keyboard Player, and now Synth Player) generate a performance on their own track.
Chorus edits what's already in your project, on any track: your own MIDI, your mix, your plug-ins, your markers and audio regions, from one request, with every change reviewed before it reaches Logic.
Questions
Which versions of Logic does it work with?
Logic Pro 12, on a Mac with Apple silicon running macOS 12 or later.
Why does Chorus need Accessibility?
Logic has no scripting interface for editing a project from outside, so Chorus Connect, a small helper inside Chorus, uses macOS Accessibility to make the edits you approve. You grant it once.
Does Chorus change my project without asking?
No. Every change arrives as a proposal you can hear, review and edit. Nothing reaches your DAW until you apply it, and History can undo anything Chorus applied.
What does it cost?
Chorus is free during the beta. It runs on your own AI key, so you pay the provider directly for what you use; a typical request costs a few cents, and you set spending limits.
What leaves my Mac?
Only what the agent needs for each request: track, clip and device names and values, and the notes it reads, sent to the AI provider you chose, with your key. Your audio, samples and project files stay on your Mac. The trust page has the details. Read the trust page →
Try Chorus on your next Logic session.
Free to download for macOS, for Ableton Live 12, Logic Pro 12 and FL Studio. Bring your own AI key.