---
title: "Stems & In-Browser Mixer with Automatic Stem Separation | Concerto"
description: "Upload stems or auto-split a track into vocals, drums, and bass, then mute, solo, and balance parts in the browser. Stem playback is free for anyone you share with."
url: "https://concerto.studio/features/stems-and-mixer"
---

# Stems & Mixer Hear 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.

[Get Started Free](https://concerto.studio/signup)

## 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 VersionAttach the separated tracks behind any version (vocals, drums, bass, whatever you've got) and label each one.

Automatic Stem SeparationNo 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 WaveformsStems appear as aligned waveform lanes under the main track, locked to the same playhead.

In-Browser MixerPer-stem mute, solo, and level controls. Solo the vocal to check a comp, or pull the drums out to hear the bed.

Free for ListenersUploading stems needs an Ensemble workspace, but anyone you share with can play and mix them on a free account.

No Quota SurprisesStem 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.

## Bring a Mix, Leave with Its Stems

Stem uploads and automatic separation are part of Ensemble ($8/mo per workspace). Playback is free for everyone you share with.

[Get Started Free](https://concerto.studio/signup) [View All Features](https://concerto.studio/features)

[Previous Music Version Control Organization](https://concerto.studio/features/music-version-control)

[Next Music Collaboration & Workspaces Collaboration](https://concerto.studio/features/professional-music-collaboration)

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