Your agent in Ableton Live, Logic Pro and FL Studio.

Chorus reads your set, proposes changes as a diff on the piano roll, and applies them only when you say so.

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
Reads

Every track, clip, note, device and send in the open Live set, Logic project or FL Studio project, down to the devices inside Live's racks and your Drum Rack's pad names.

Proposes

Changes arrive as diffs you can hear first: green added, red removed, amber changed. Your DAW is untouched until you apply.

Undoes

Every apply is a History entry with undo and redo, kept across restarts. If your DAW stops partway, Chorus finishes or puts it back.

Agent

Ask in your own words. Chorus reads the clips and devices it needs, then writes notes, moves the mix or builds the arrangement. Plan mode designs first; Ask mode only answers.

Press ⌘K on a clip to edit just that clip.

More on the agent
Agent · makes changes
Write a bassline for the Drop scene that locks with the kick
◇Read Drums › Beat57 notes
◇Read Keys › ChordsAm – F – C – G

Roots on the downbeats with the kick, an octave jump into each chord change, and nothing on the clap so it breathes.

1 clip changed Review
Bass › Drop Bass+22
Review

Every change is a diff. Green notes added, red removed, amber moved, right on the piano roll. Apply one bar, put another back, or take the whole clip.

+11−1~15⌘Y apply bar · ⌘U reject
How review works
Drums›Beat4 of 4 bars to review
1234
Hihat Open
Hihat Closed
Clap
Snare
Kick 808
Bar 1+2 ~4Reject ⌘UApply ⌘Y
Plan → Build

Plan the song, then build it. Ask for an arrangement and Chorus writes a plan: sections, bar counts, which scenes play. Edit it, press Build, and every clip lands in Live's arrangement with locators. (Build uses Live's scenes; in Logic, Chorus edits the timeline directly.)

Plan mode
PlanMidnight Loop, as a song64 bars · 124 BPM
Intro8 bars
Build8 bars
Drop16 bars
Break8 bars
Drop 216 bars
Outro8 bars
Building in Live…Build ⌘⏎
Arrangement
19172533414957IntroBuildDropBreakDrop 2Outro
DrumsBassKeysPadLead
Arrangement

Edit the song, not just the loop. Make a section longer, cut the break, clear bars on a few tracks. Clips or regions and their locators or markers move together, and Undo puts every one back exactly.

Arrangement editing
ArrangementYou: make the drop 8 bars longer
Insert 8 bars at bar 17 · everything after moves right · fill with the Drop scene
191725334149IntroBuildDropBreakOutro
Drums
Bass
Keys
Lead
Mix and devices

Turns the knobs you'd turn. Volumes, sends, pans and any device or plug-in parameter, inside Live's racks too. Each proposed move shows the current value and the new one before anything changes.

Mix and devices
BassDevicesYou: make the bass sit under the kick, a bit grittier
Grit Rack › SaturatorDrive0.0 dB → 4.8 dB
Grit Rack › Auto FilterFrequency1.20 kHz → 640 Hz
BassSend A · Reverb−∞ dB → −18.0 dB
Volume
−3.0 dB → −5.5 dB
4 changes · Proposed by ChorusRejectApply to Live
Audio

Tighten audio with your DAW's own quantize. In Live, Chorus runs audio Quantize on a throwaway copy and shows the warp markers it would set before your clip changes. In Logic, it sets the region's Quantize and Flex. Warp or flex mode, transpose and gain too.

Audio and warping
Vox Chops›Vox Chop 01Audio · 2 bars · Complex ProQuantize ▾
Proposed warping: 16 markers (now 1)RejectApply to Live
12
16 transients pulled 70% onto 1/16
Your set, your call

Nothing reaches your DAW until you press Apply.

Chorus stages every change. Apply all of it, one clip, or one bar. Everything you apply goes into History with undo and redo, so trying an idea costs nothing.

Hear it firstPlay the proposal on your own instruments in Live (Stop puts the original back), or A/B it on the built-in synth.
Undo anythingNotes, mix moves, arrangement edits and warping, even after a restart.
Never half-doneIf your DAW refuses a step, Chorus finishes the change or puts it back, step by step.

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.