Stems & MixerHear the Parts, Not Just the Mix
Upload the stems behind a version, or let Concerto split a finished track automatically. Everyone you share with can solo, mute, and balance the parts right in the browser.
How It Works
A Mixer Inside the Player
Reviewing a mix is easier when you can hear inside it. Stems live with the version they belong to, aligned to the same timeline as the comments.
- Upload Stems with a Version
Attach the separated tracks behind any version (vocals, drums, bass, whatever you've got) and label each one.
- Automatic Stem Separation
No stems handy? Check “Auto-split into stems” and Concerto separates vocals, drums, bass, and the rest from your master. It runs in the background and takes a few minutes for a full song.
- Stacked Waveforms
Stems appear as aligned waveform lanes under the main track, locked to the same playhead.
- In-Browser Mixer
Per-stem mute, solo, and level controls. Solo the vocal to check a comp, or pull the drums out to hear the bed.
- Free for Listeners
Uploading stems needs an Ensemble workspace, but anyone you share with can play and mix them on a free account.
- No Quota Surprises
Stem files, uploaded or auto-generated, don't count against your workspace's file limit.
What People Use It For
Mix Review
A collaborator thinks the bass is fighting the kick? They can solo the two stems at the exact spot and leave a time-synced comment about what they hear.
Vocal Comps
Solo the vocal lane to check tuning and edits without the arrangement in the way, then flip the band back on for context.
Band Practice
Drop your part out of the mix and play along with everyone else. (For a dedicated free practice tool, check out our companion app Shed.)
Client Listening
Clients don't need software or a subscription. The mixer runs in their browser on any version you share.