Sixty-four pads, eight columns, eight scenes. A Launchpad-style groovebox that fills empty pads with ACE-Step audio on supported Mac and iPad hardware.
Set-ready software runs at the venue, on the plane, in the basement, anywhere. OhmsGrid is built like a hardware groovebox should be: launch a clip and it plays. No buffering, no auth check, no “you're offline” modal.
Every pad you launch and every supported clip generation is processed on your device; Mac stem workflows stay on your Mac. No upload step, cloud render queue, or login. The grid works offline after approved model setup.
OhmsGrid handles audio you imported, audio you generated, project files, and your preferences. None of it is transmitted. The only outbound traffic is the one-time download of the ACE-Step model from a public open-weights mirror, and Ableton Link LAN tempo discovery if you opt into it.
ACE-Step is open-weights. Stems separated via UVR are open-weights too. The clips you bounce out of OhmsGrid carry no platform claim and no per-stream license. Sample them. Sell them. Resample them tomorrow. The app doesn't appear in your release notes unless you put it there.
Columns are instrument categories. Rows are scenes. Each cell is a clip slot you can fill with your own sample or ask the AI to generate for you. Launch a single pad. Or fire an entire row and watch the system play in lockstep: quantized, key-matched, tempo-locked.
Try the offline simulator below. Click an empty pad and ACE-Step generates audio for it locally. Toggle Play to run a synchronized vertical step scan.
Click an empty pad. Type a short prompt (“heavy 808 kick pattern”). Pick a style bubble or two. The model reads your project's key, tempo, and the column's category, then generates a clip that fits. Duration is auto-calculated by column (drums run 2 to 4 bars, pads run 4 to 8). All on device via ACE-Step.
Drop a track into the Separation tab. UVR runs locally. Stems route directly to grid columns (vocals to VX, drums to DR, bass to BS) or save to disk as files. No upload step. No watermarked preview. No platform claim on the stems you extract.
The grid is built for live performance: pads render their waveforms live in canvas at 60fps; FX pads trigger momentarily and snap back; scenes quantize to bar boundaries by default. The same mental model as a Novation Launchpad, without the hardware dependency.
Launchpad-style clip launcher. Each column is a category (Drums, Bass, Lead, Melody, Pad, FX, Vocal, Perc). Each row is a scene. Trigger pads individually or fire whole scenes with quantization.
Browse, search, and drag-drop your own samples by category. Organized by the same column taxonomy as the grid: drums go to drums.
Empty pads auto-fill via ACE-Step. The model picks up project key, tempo, and the column's category. Drums sound like drums, pads sound like pads.
Generate N candidates per empty pad and the app auto-selects the highest-quality result. Audition the rest if you want.
Quick genre/mood tags (Lo-fi, Trap, Ambient, etc.) for AI prompts. Click two or three; the model reads them as additive style hints.
Bundled UVR runtime separates any clip into vocals, drums, bass, and instrumental. Written directly to grid columns or to disk.
Per-column volume, pan, mute, and solo. A master signal scope so you can see what's clipping. The same surface a Launchpad-trained performer would expect.
Every pad renders its waveform live, in canvas, at 60fps. Momentary FX pads. Performance-grade UI built for set-ready use, not just studio mouse work.
OhmsGrid is a single App Store purchase for Mac and iPad. No subscription, no clip credits. One app, all features, every clip generated on hardware you already own.
View on the App StoreVersion 1.4.1 is in preparation and is not in the current download. It adds detected-onset slicing, real reference-audio mel conditioning, checksum-staged model setup with guarded deletion, complete bounded iPad document and audio-route bridges, accessible pads, and responsive iPad layouts.
OhmsGrid is an 8×8 clip-based groovebox built around on-device AI music generation. Each column is an instrument and each row is a scene. Tap an empty pad and OhmsGrid generates a clip that locks to your project's key, tempo, and time signature.
No. ACE-Step 1.5 inference runs locally on supported Apple Silicon Mac and iPad hardware. No audio leaves the device, there is no subscription, and there are no generation tokens.
Yes. OhmsGrid is built for grid controllers — Novation Launchpad, Ableton Push 2, and Akai APC40 are supported, along with standard MIDI, so you can play and trigger the grid with your hands.
Warm generations land in roughly 2–3 seconds on Apple Silicon (measured on an M3 Max). The first generation after launch takes longer while the model loads into memory.
OhmsGrid is a one-time $19.99 App Store purchase for Mac and iPad. No subscription or per-generation fees.
No. There is no telemetry, analytics, or account. Projects and generated audio stay on your device; Mac stem workflows stay on your Mac.
OhmsGrid is a one-time $19.99 App Store purchase. No subscription, account, or clip credits. Supported clips are generated on your Apple Silicon device.
Vocal and stem separation, offline.
The practice room that never listens back. Slow any song, see its chords, loop the hard bars — 100% on your Mac.
Real-time vocal pitch correction and AI harmony.
Local AI music that stays local.
