StemStudio

Lantern Street · demo song · A minor · 100 BPM

Try it. Press Play. Pull the faders. Nudge the tempo or pin a slower tempo at the final chorus. Turn on lead replacement to hand the melody to a flute. Rebuild the backing vocals as a male group or a wordless choir. Pick a track in the FX panel and drag its faders, then draw an envelope on that track's waveform to add reverb, echo, tone or compression over a specific section. Tap a preset in the Arrangement AI for section-scoped changes (no typing). Your session autosaves; add ?reset to the page URL to ignore a saved session. Drag on the bar ruler to loop a range. Tick Click for a metronome. Download stems from the export panel.

Drag a song here. We'll split it into vocals, drums, bass and instruments.
MP3, WAV, FLAC, M4A, MP4 or MOV, up to 6 minutes and 50 MB. The server deletes songs after 24 hours: use Save project to keep one.
0:00.0 / 0:38
Tempo100 BPM
KeyA minor
Ready
Bar · chord

Shortcuts: Space play   M mute   S solo   C click track   ↑↓ volume   ←→ seek   Ctrl+Z undo. Drag the bar ruler to loop a range. With an envelope open: double-click a waveform to add a point, drag to move, right-click to delete.

Key & tempo

Preview ready
0 st
A minor
Base tempo
100 BPM
Section key changes

Lead replacement

-3 dB
Hear
GM program
73
Notes rendered
0
Dynamics match to singer
1.00
Timing offset from singer
0 ms

Backing vocals

Female · words
Voices
Source
Voices in the stack
3
Words in the track
0
Shift quality (estimated)
Good
Notes
0

Track FX

Dry
Track

Drag a fader. Click the ◇ under a fader to write a value at the playhead. On the selected track's waveform: double-click to add a point, drag to move, right-click to delete.

Arrangement AI

Idle

Section-scoped FX writes envelope points on the selected track. Unnamed FX changes the global fader on that track.

Tap a preset to apply it. FX moves act on the Track FX selection: Backing. Backing-vocal, key and tempo presets act on the whole arrangement.

Performance view

Detected keyA minor
Tempo100 BPM
Range–
Analysis confidence–
Show Velocity softhard
Bar
Vibrato
Kick
Snare
Tom
Hat
Cymbal

Export

Mixes down with the current faders, pan, key, tempo, FX and lead settings.

Stems

Each stem includes its FX chain (reverb, echo, tone, dynamics, ensemble) and the current key, tempo and lead settings. Raw writes at unity gain. As mixed applies the current fader volume and lead gain, ignoring mute and solo.