Automatic key detection
Each project gets an analyzed key (note and mode, with a confidence score). That reference is stored on the project: when you pick another key, the app computes the semitone offset from this detected root.
Transpose the whole mix in one step
After your song is split into tracks, the editor can shift pitch to a new key: the service first analyzes the recording and stores a detected key, then retunes all stems together while keeping tempo steady.
Try for free
Sign up, upload a track, and open it in the editor.
How it works in the editor
Key menu in the control panel
The key dropdown lists musical keys. Next to each option you see the semitone shift from the auto-detected key — “original” for no change, or values like +2 / −3 semitones. Major and minor are handled consistently, including relative key relationships.
All tracks transpose together
When you change key, playback pauses and the same semitone shift is applied across every track so vocals and instruments stay locked — like one unified mix.
Pitch without changing speed
Processing uses an algorithm that adjusts pitch while keeping playback tempo stable. Results are cached for smooth scrubbing, and extreme shifts are clamped to a safe semitone range.
FAQ
The detected key is the reference for shift labels, but you can always choose another key manually. The player recomputes semitones and applies your choice to all stems.
No — transposing changes pitch only, not playback speed, so you do not get a sped-up or slowed-down effect.
Yes. When you export the mix or individual stems, the current pitch shift is baked in — your WAV or MP3 matches the key you hear in the editor.
Try for free
Sign up, upload a track, and open it in the editor.