Add tonejs support

[etamity]

I have been searching Tonejs implement for this project, only find a year ago you have been trying to implement here Tonejs/Tone.js#290 , wondering is there any progress?

Thank you for your awesome work!

[surikov]

WebAudioFont is a full-fledged engine that uses realistic musical instruments.
You can use it to create apps like this https://www.youtube.com/watch?v=vJc11SsyfQ4

Tone.js is a library to play sound filres and effects. Tone.js doesn't have library with musical instruments.

WebAudioFont doesn't need Tone.js.

[stephaneeybert]

but Tone.js need WebAudioFont :-)