On the recordOn your device
Ohms Rehearse · music · Coming soon

Ohms Rehearse.

The practice room that never listens back. Slow any song, see its chords, loop the hard bars — 100% on your Mac.

BOUGHT ONCE

No subscription, ever

The category leader moved its whole feature set behind a yearly fee. Ohms Rehearse is one price, once — slow-down, chord detection, and stem-mute play-along in a single purchase you keep forever.

HONEST CHORDS

It tells you when it isn't sure

Every detected chord carries a visible confidence, and low-confidence chords are hedged, never faked. Tap any chord to correct it and the fix re-decodes its neighbors so the whole chart improves.

NOTHING LEAVES

The practice room that never listens back

No microphone, no network, no account. Your song files and your practice sessions never touch a server — which is exactly why the app can be bought once instead of rented.

What it does
slow
Pitch-locked slow-down, 25%–150%

Drag any song down to a quarter speed to learn a fast line, or nudge it up to push yourself — the pitch stays put. Transpose ±12 semitones independently to play in your key or simulate a capo.

Apple's native time-pitch engine — no third-party audio libraries.
chords
Chords and key, with confidence

On-device analysis lays the song's chords along the timeline and estimates its key. Low-confidence chords are visibly hedged; one tap opens a root/quality picker and re-decodes the neighbours.

Written in-house on Accelerate/vDSP — classical, well-documented DSP.
loops
Bar-snapped A–B loops

Drag loop handles that snap to detected bars, name them ('solo', 'bridge'), and drill them with an optional count-in click. Your loop library lives on the song card.

stems
Mute a part and take its place

Two-stem separation splits vocals from the accompaniment on-device, so you can mute the part you're replacing and play along with the rest.

Spleeter 2-stems on Core ML — bundled, MIT-licensed, no download.
Ohms Rehearse · Coming soon
100% on-device. Nothing leaves the Mac.