---
title: "Minus One Maker: Make a Backing Track from a Song"
description: "Make a minus one from a song by taking out the lead vocal. Get a single backing track for practice or karaoke, made in your browser with no upload."
canonical: https://toolsugar.com/tools/minus-one-maker
image: https://toolsugar.com/og.png
---

# Minus One Maker

A minus one is a song with the lead vocal removed so you can sing over it. This page makes one with an MDX-Net model in your browser, returning a single instrumental as a 192 kbps MP3 or 16-bit WAV. The key and tempo stay as recorded. Songs can run up to 15 minutes, and the first run downloads a 66.8 MB model.

Runs on your device

## How it works

1. Choose the song you want to sing or play along with, up to 15 minutes.
2. Leave the format on MP3, or switch to WAV if you plan to edit the track.
3. Press Make backing track and wait for the separation to finish.
4. Download the track and load it into your karaoke or practice app.

## Key facts

- **You get**: One instrumental track
- **Key and tempo**: Unchanged from the original song
- **Formats**: MP3 192 kbps by default, or WAV 16-bit
- **Length limit**: 15 minutes per song
- **First download**: 66.8 MB model, saved for later runs
- **Speed**: On an Apple M4 Pro: about 16 s per minute of audio with WebGPU, about 3 min 45 s without it

## Common uses

- Rehearse a song for a choir solo or a church service.
- Make a karaoke track for a song that has no official version.
- Practise a wedding or school performance at home.
- Warm up with the full arrangement before a recording session.

## Questions

### Can I change the key to suit my voice?

Not here. This page only removes the vocal, so the key and tempo stay as recorded. Pitch shifting would be a separate step in another app.

### Are the backing vocals removed too?

Usually most of them, because the model treats harmonies as voice. Choir parts or a chorus buried in the mix can leave faint traces. A track built around backing vocals may sound a little hollow in those sections.

### Can I get the vocal as well?

Use the Vocal Remover page for that. It runs the same model and returns both the instrumental and the vocal, which helps when you want to learn the melody first.

### Can I perform in public with this track?

Practice at home is one thing. A public performance or a video you publish can need a licence for the song, and removing the vocal does not change that.

[Read the Minus One Maker guide](https://toolsugar.com/blog/how-to-remove-vocals-from-a-song)

## Related tools

- [Vocal Remover](https://toolsugar.com/tools/vocal-remover)
- [Remove Music from Audio](https://toolsugar.com/tools/remove-music-from-audio)
- [Audio Cutter](https://toolsugar.com/tools/audio-cutter)
- [Audio Converter](https://toolsugar.com/tools/audio-converter)
- [MP3 to WAV](https://toolsugar.com/tools/mp3-to-wav)