> For the complete documentation index, see [llms.txt](https://docs.acestudio.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acestudio.ai/project/arrangement-in-canvas/tracks.md).
# Tracks
## Overview
On the Canvas, each row represents a track.
By default, Canvas contains 100 empty tracks. Tracks can hold MIDI Clips, Audio Clips.
Depending on the content loaded on the track, the track types can be categorized as:
* [MIDI Tracks](/project/arrangement-in-canvas/tracks/midi-tracks.md)
* [Audio Tracks](/project/arrangement-in-canvas/tracks/audio-tracks.md)
## General Controls
Each track header has an icon, track name, mute button (triangle), track index, solo button, fx button.
* Click on any part of the track header except the image to select the track, you can hold Shift to select multiple tracks.
* Hold Ctrl / ⌘Command to activate multiple solos
* Click on the triangle to mute this track.
* Right click on the track header to see all control options.
* You can delete, copy, cut, and duplicate it, or paste tracks below it.
* Click rename to edit the track name.
* Click to turn on [Unison Mode for vocals](/ai-vocal-synth/creating-ai-vocals/unison-mode-for-vocals.md) or [Unison Mode for instruments](/ai-instruments/create-instrument-sounds/unison-mode-for-instruments.md), or create [Doubles](/ai-tools/doubles.md).
* You can see the solo button and [FX](/project/mixing/effects.md) button by hovering your mouse on a track header.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.acestudio.ai/project/arrangement-in-canvas/tracks.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.