---
title: ToolRouter — Agent Use Case Guide
description: Step-by-step guide for completing a task with a specific AI agent using ToolRouter.
url: https://toolrouter.com/tools/video-editor/use-cases/add-background-music/copilot
---
# How to Add Background Music with Copilot

Copilot adds background music to videos within your IDE, making it straightforward to polish screen recordings and tutorial videos. Specify simple parameters like volume percentage and fade timing, and Copilot handles the audio layering while you continue working on other development tasks.

## Setup

{"mcpServers":{"toolrouter":{"command":"npx","args":["-y","toolrouter-mcp"]}}}

## Steps

1. Add ToolRouter to Copilot MCP config
2. In Copilot Chat: "Add this lo-fi track as background music to my demo video"
3. Copilot processes the audio mix via ToolRouter
4. Adjust: "Lower the music volume to 25% throughout"
5. Save the video with music to your project

## Example Prompt

```
Add background music to my screen recording tutorial. Use the provided ambient track at 30% volume. Fade in over 1 second and fade out over 2 seconds at the end.
```

## Tips

- Perfect for adding polish to developer tutorial and demo recordings
- Copilot can handle the audio mix while you continue coding
- Keep music volume low for technical content where audio clarity matters
