Including Tone

For Tone.js to work in your sketch you need to include it in your HTML file.

Open your project-folder and find the index.html file. Add this line under the first three script tags:

<script src="https://cdnjs.cloudflare.com/ajax/libs/tone/0.11.0/Tone.min.js"></script>

This loads Tone.js in your sketch.

Here is a playlist showing Tone.js and Codepen to generate sounds