SID preview: jsSID 0.9.1 by Hermit (Mihaly Horvath), 2016
Original source: https://github.com/og2t/jsSID/blob/master/source/jsSID.js
Author's website: http://hermit.sidrip.com

The project's README states: "The license is the popular WTF license, so
'do what the fukk you want with this code'. :) I'd be grateful if my
name/credits won't be removed from it, but otherwise feel free to use it
as you wish."

Local changes: expose AudioContext resume, make connect/disconnect idempotent,
and invoke the load callback after CPU/SID initialization.

The analysis, demo melody, UI, and 6502 player/exporter are original SID Maker code.

Polyphonic note model: @spotify/basic-pitch 1.0.1 and model weights
Copyright 2022 Spotify AB. Apache License, Version 2.0.
Source: https://github.com/spotify/basic-pitch-ts
Local integration: worker inference, source caching, two-voice arrangement.

TensorFlow.js and WebAssembly backend: 4.22.0
Copyright Google LLC. Apache License, Version 2.0.
Source: https://github.com/tensorflow/tfjs

Apache License text: vendor/LICENSE-APACHE-2.0.txt
Additional bundled license notices: vendor/pitch-worker.js.LEGAL.txt