| --- |
| license: cc0-1.0 |
| license_name: mixed-cc0-cc-by |
| pretty_name: CometBeat Assets |
| tags: |
| - music |
| - music-education |
| - soundfont |
| - musicxml |
| - abc |
| - kern |
| - gabc |
| - midi |
| --- |
| |
| # CometBeat Assets |
|
|
| Curated, rights-verified assets for the **CometBeat** music-education app — |
| SoundFonts, instruments, samples, and a large symbolic **score** corpus. Every |
| item is published with a per-item `license` + `attribution` in the catalog JSON. |
|
|
| ## What ships here (tiers) |
|
|
| Only **Tier A** and **Tier B** are published. Tier C (Share-Alike) and Tier D |
| (Non-Commercial) are **never** in this dataset. |
|
|
| | Tier | Licences | Obligation | |
| |---|---|---| |
| | **A** | CC0 / Public Domain / MIT | none | |
| | **B** | CC BY 3.0 / 4.0 (attribution) | **must credit the author** — carried per item in `attribution`, shown in the app's "Sources & credits" | |
| | ~~C~~ | ~~CC BY-SA / ODbL (share-alike)~~ | not published here | |
| | ~~D~~ | ~~any Non-Commercial~~ | not published here | |
|
|
| ## Attribution (Tier B) |
|
|
| Each Tier-B item carries an `attribution` string (composer / editor / source). |
| Re-users must preserve it. Sources of the Tier-B content: |
| **NIFC / The Fryderyk Chopin Institute** (Polish scores + Chopin first editions, |
| CC BY), **Mutopia Project** (CC BY items), **EGSet12**, and CC-BY tracker modules. |
|
|
| ## Layout |
|
|
| - `catalog/index.json` — the small index the app reads first (per-kind shards). |
| - `catalog/{soundfont,instrument,sample,module,score}.json` — per-kind shards; |
| each item has `license`, `attribution`, `tier` (A/B), `path`. |
| - `catalog.json` — the full combined catalog. |
| - `assets/…`, `gregobase/…`, `nifc/…`, `pdmx/…`, `mutopia/…`, … — the payloads |
| (score paths are md5-bucketed so no directory exceeds HF's 10k-files limit). |
|
|
| Content policy: symbolic music only (MIDI/MusicXML/kern/ABC/GABC/GP) + audio only |
| as an instrument/sample payload (SFZ/SF2). Provenance is verified per source; the |
| publish gate excludes Share-Alike, Non-Commercial, and unclear-licence material. |
|
|
