---
title: "Stems - Changelog | Concerto"
description: "Reviewing a mix is so much easier when you can hear the parts. Today we're shipping Stems: upload the separated tracks behind a version and play them back…"
url: "https://concerto.studio/changelog/stems-and-mixer"
datePublished: "2026-06-14T12:00:00.000Z"
---

# 🎚️ Stems

_2026-06-14 — new_

Reviewing a mix is so much easier when you can hear the parts.
Today we're shipping **Stems**: upload the separated tracks behind a version and play them back right inside Concerto, complete with a built-in mixer.

## Upload your stems

On any version you can edit, open the edit panel and you'll find a new **Stems** section below your notes.
Add your stem files (vocals, drums, bass, guitars, whatever you've got), give each one a label, and upload.
Concerto suggests sensible labels from the filename, and you can rename a stem any time.

You can also attach stems while uploading a new version, so everything lands together.

![The stem manager in the version edit panel, with bass, drums, other, and vocals stems labeled and ready](/changelog/stems-and-mixer/stem-manager.png)

## Play and mix in the browser

When a version has stems, they appear as **stacked waveforms right under the main track**, perfectly aligned to the playhead.
Hit play and you'll hear the stems mixed together.

Pop open the **Mixer** for per-stem **Mute**, **Solo**, and **Level** controls: solo the vocal to check a comp, drop the drums to hear the bed, or build your own balance while you leave your feedback.

![The player with stem lanes stacked under the master waveform and the mixer panel open, showing mute, solo, and level controls per stem](/changelog/stems-and-mixer/stem-player-mixer.png)

## Who gets it

Uploading stems is part of any **Ensemble workspace**: it's a logical fit next to other premium tools like Version Comparison, and the uploaded files are not counted in your upload quota.
**Any viewers can play and mix stems**, so your collaborators and clients get the full experience without needing a subscription.

This is just the first movement.
We're already working on **automatic stem separation** so you can split a track into its stems with a single upload... stay tuned.

**Happy mixing,**

**The Concerto Team**

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[Full changelog](https://concerto.studio/changelog.md)