meloktaCOPYRIGHT
Copyright and content use
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Melokta’s own content
The melodies and exercises in the lessons, the game tasks, the rhythm activities and the texts were written for this project. The older piano studio lessons use only the note sequences of public-domain tunes such as “Ode to Joy” (Beethoven), “Twinkle, Twinkle” and “Mary Had a Little Lamb”; no lyrics, commercial recordings or other people’s arrangements are used.
Asset and licence inventory
The source, licence and risk status of each asset are listed below. Content whose licence could not be verified is marked “not verified” and is not considered suitable for commercial use.
| Asset | Source | Licence | Commercial use | Attribution | Risk |
|---|---|---|---|---|---|
Piano sound samplespublic/samples/piyano/*.mp3 (22 files) | tonejs-instruments (Nicholaus P. Brosowsky); original source: VSO2 (Versilian Studios) | CC BY 3.0 (compilation); the original source is stated as "public domain" | Allowed (CC BY 3.0, with attribution) | Required: Nicholaus P. Brosowsky / tonejs-instruments, CC BY 3.0 (on the Sound sources page) | To verify |
Acoustic guitar samplespublic/samples/akustik-gitar/*.mp3 | tonejs-instruments; original source: University of Iowa Electronic Music Studios | CC BY 3.0 (compilation) | Allowed under the compilation licence; original source terms to be verified | Required (CC BY 3.0) | To verify |
Electric guitar samplespublic/samples/elektro-gitar/*.mp3 | tonejs-instruments; original source: Karoryfer Samples | CC BY 3.0 (compilation); CC BY 4.0 attribution kept for the original collection | Allowed under the compilation licence; the Karoryfer collection licence to be verified | Required | To verify |
Classical (nylon) guitar samplespublic/samples/klasik-gitar/*.mp3 | tonejs-instruments; original source: Freesound pack 11573 (quartertone) | CC BY 3.0 (compilation); the original Freesound licence could NOT be verified | Not verified — check the original licence before commercial use | Required (at least CC BY 3.0 attribution) | Unclear |
Trumpet, recorder, xylophone, drum kit and metronome soundssrc/audio/brass.ts, recorder.ts, xylophone.ts; public/drums.js, drumkit.js | Melokta code: synthesised in the browser with Web Audio (no sound files) | Project code | Owned by the project | Not required | Low |
PDF font (Noto Sans)src/assets/fonts/NotoSans-*.ttf (subset) | Google Noto Fonts | SIL Open Font License 1.1 | Allowed | Licence text on the site: /licenses/OFL-NotoSans.txt | Low |
Music symbols (Bravura glyph outlines)src/worksheets/glyphs.ts | Steinberg Media Technologies — Bravura (@vexflow-fonts/bravura package) | SIL Open Font License 1.1 | Allowed | Copyright notice and licence: /licenses/OFL-Bravura.txt | Low |
Melokta logo, app icons and share imagebrand/melokta-logo.webp → public/brand/, public/icons/, public/icon.svg, public/favicon.ico, public/social.png | Logo supplied by the site owner on 29 Oct 2026; icons and share image generated from it (scripts/brand-assets.mjs). The logo designer / rights holder is not documented | Not documented | Owner to be confirmed (commercial use and trade mark) | — | Unclear |
Unicode charactersSymbols in the interface such as ♪ 🎯 ★ | Drawn by the user’s operating system font; not distributed as a file | — | No separate licence needed as no file is distributed | Not required | Low |
Lesson, game and rhythm activity content and melodiespublic/data/*-lessons.json, games.json, activities.json | Written for this project (melodies marked "original" in the data) | Owned by the project | Owned by the project | Not required | Low |
"Ode to Joy" (Beethoven), "Twinkle, Twinkle", "Mary Had a Little Lamb" tunespublic/lessons/piyano.json (legacy piano studio lessons) | Traditional / 19th-century compositions; Melokta uses only the note sequence, no recordings or lyrics | Public-domain compositions (tune) | The tunes are public domain; no lyrics or third-party arrangements are used | Not required (composer named for information) | Low |
Runtime libraries: React, react-dom, scheduler, pdf-lib, @pdf-lib/*, pako, tslib, qrcode-generatornode_modules → dist/assets | npm | MIT, (MIT AND Zlib), 0BSD | Allowed | Licence notices: /licenses/THIRD-PARTY-NOTICES.txt | Low |
Attributions
- Piano and guitar samples: Nicholaus P. Brosowsky and tonejs-instruments contributors, CC BY 3.0 — see Sound sources (Turkish) and /licenses/SOUND-SAMPLES.txt.
- Bravura © 2019 Steinberg Media Technologies GmbH, SIL Open Font License 1.1 — /licenses/OFL-Bravura.txt.
- Noto Sans © The Noto Project Authors, SIL Open Font License 1.1 — /licenses/OFL-NotoSans.txt.
- Licence notices of software libraries — /licenses/THIRD-PARTY-NOTICES.txt.
Use by teachers
You may use, print and share the activities, worksheets and PDFs you create with Melokta in your own classes. If you redistribute the sound samples outside Melokta, keep the attributions and licence terms above.
Reporting an infringement
If you believe content infringes your rights, write to [To be completed: contact email] with the address of the content, information showing your ownership and your contact details.