# Third-party components shipped with this site Keynata Radio serves everything it needs from its own domain — no third-party CDN is contacted while the site is running. Three components are redistributed here under the terms below. None of them restrict your use of the tracks themselves, which remain CC0 1.0. | Component | Files served from this site | Version | License | |---|---|---|---| | SpessaSynth (`spessasynth_lib` + `spessasynth_core`) | `vendor/spessasynth.min.js`, `vendor/spessasynth_processor.min.js` | 4.3.12 / 4.3.16 | Apache License 2.0 | | GeneralUser GS instrument bank | `assets/GeneralUser-GS.sf2` | 2.0.3 | GeneralUser GS License v2.0 | | 040 Florestan String Quartet instrument bank | `assets/040_Florestan_String_Quartet.sf2` | Aug 23, 2000 | Public Domain | The two instrument banks are the same ones Keynata Commons uses to render the MP3 files this radio streams, so in-browser synthesis (the offline fallback) and the recorded audio draw on the same instruments. --- ## 1. SpessaSynth — Apache License 2.0 Copyright (c) 2026 Spessasus. Source: and . The files served here are unmodified builds published by the project on npm: `spessasynth_lib@4.3.12` (which depends on `spessasynth_core@4.3.16`). `vendor/spessasynth.min.js` is that package bundled for the browser with esbuild; `vendor/spessasynth_processor.min.js` is copied verbatim from the package. The full license text is also served at `vendor/LICENSE-spessasynth.txt`.
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SpessaSynth is not endorsed by or affiliated with the MIDI Manufacturers Association, Roland Corporation, Yamaha Corporation, Creative Technology Ltd. or E-mu Systems, Inc. SoundFont(R) is a registered trademark of Creative Technology Ltd. --- ## 2. GeneralUser GS — GeneralUser GS License v2.0 Copyright 1997-2025 by S. Christian Collins. Source: and . The file `assets/GeneralUser-GS.sf2` is an unmodified copy of GeneralUser GS 2.0.3. In line with the "More info" clause below, this site serves its own local copy rather than linking to the author's download files. Full license text, as published with the bank: ``` *** GeneralUser GS v2.0.3 *** *** License v2.0 *** ** License of the complete work ** You may use GeneralUser GS without restriction for your own music creation, private or commercial. This SoundFont bank is provided to the community free of charge. Please feel free to use it in your software projects, and to modify the SoundFont bank or its packaging to suit your needs. ** License of contained samples ** GeneralUser GS inherits the usage rights of the samples contained within, all of which allow full use in music production, including the ability to make profit from musical recordings created with GeneralUser GS. Many of the samples are original, but some were taken from other banks freely (and legally) available on the Internet from various SoundFont websites. Because GeneralUser GS originated as a personal project with no intention for publication, I cannot be 100% sure where all of the samples originated, although I do know that none of them came from commercially published SoundFont packages or sample CDs. Regardless, many "free" SoundFonts available on the web may indeed contain samples of questionable origin. My understanding of the copyrights of all samples is only as good as the information provided by the original sources. If you become aware of any restricted samples being used in GeneralUser GS, please let me know so I can replace them. This uncertainty may concern you if you intend to use GeneralUser GS in a commercial software product. That being said, I have never received any complaint regarding sample ownership since I published the original GeneralUser GS back in 2000, and as far as I am aware, neither have any of the companies creating commercial software products using GeneralUser GS. ** More info ** If you plan to feature GeneralUser GS on your own website, please do not link directly to my download files. Either link to my website, or provide your own local copy instead. I hope you enjoy GeneralUser GS! This SoundFont bank is the product of many years of hard work. You can find updates to GeneralUser GS and more of my virtual instruments at: http://www.schristiancollins.com I can be reached via the contact page on my website here: https://www.schristiancollins.com/contact Thank you! -~Chris ``` --- ## 3. 040 Florestan String Quartet — Public Domain Created by Nando Florestan, August 23, 2000. The bank's embedded RIFF INFO metadata states `ICOP: Public Domain`, and the author's site distributes it as such. It is redistributed here unmodified as `assets/040_Florestan_String_Quartet.sf2`, and supplies the violin, viola and cello voices (General MIDI programs 40-43). --- ## What this does not cover The music itself — every track this radio plays — is dedicated to the public domain under CC0 1.0 and is not affected by anything on this page. The tracks are streamed from [Keynata Commons](https://carf-coder.github.io/keynata-commons/), whose License and Attribution sections document how they are made: the drum engine was trained on the [Groove MIDI Dataset](https://magenta.withgoogle.com/datasets/groove) (Magenta, Google; CC BY 4.0), and the melodic and harmonic engines use only public-domain scores (original works from the PDMX dataset) and music theory written down from published, cited sources. That attribution is ours to make — it does not restrict your use of the tracks. The radio application's own code (HTML, CSS, JavaScript in this repository, excluding `vendor/` and `assets/`) is released under the MIT License — see [LICENSE](LICENSE).