Resonant pitch processing uses these unmodified Mozilla Public License 2.0 packages:

@soundtouchjs/core 2.1.1
@soundtouchjs/interpolation-strategy-lanczos 2.1.1

Copyright Olli Parviainen, Ryan Berdeen, Jakub Fiala and Steve 'Cutter' Blades.
Individual source-file notices identify their respective copyright holders.

License: /licenses/SoundTouchJS-MPL-2.0.txt
Corresponding source and notices for this version:
https://github.com/cutterbl/SoundTouchJS/tree/v2.1.1/packages/core
https://github.com/cutterbl/SoundTouchJS/tree/v2.1.1/packages/interpolation-strategy-lanczos
https://github.com/cutterbl/SoundTouchJS/releases/tag/v2.1.1

The dependency code is bundled into Resonant's local pitch worker. Resonant's
worker and integration code are separate files; the covered dependency sources
have not been modified. No audio is sent to SoundTouchJS or another service.