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BetterChord Data: guitar chord voicings + song metadata
Two SQLite databases published alongside ChordCNN, the model that powers BetterChord. Both are trimmed public releases of the databases BetterChord actually runs on — some columns present in the live app's data are withheld here for copyright/ToS reasons (see below).
Files
voicings_release.db
A voicings table of guitar chord fretboard voicings: chord, root,
quality, bass, frets, base_fret, barres, notes, intervals,
category, type, capo, source, id. 45,058 rows.
The source column is transparent about origin (oolimo or jguitar
for scraped/sourced shapes; otherwise computationally resolved). Fret
positions themselves are treated as facts derived from music theory and
guitar physics — the small number of valid fingerings for a given chord
— not protectable creative expression.
Not included: a rank column present in the live app's database was
dropped here — its provenance (whether it reflected an original site's
own display ordering) was unclear, and it has zero effect on the app's
actual output (voicings are always re-sorted by type/fret position
downstream regardless of DB order).
betterchord_songs_release.db
A songs table: id, artist, title, spotify_url,
spotify_track_id, streams, search_rank, youtube_video_id.
31,140 rows.
Not included: the live app's database also holds per-song chord-list data (scraped from Ultimate Guitar) and additional metadata sourced via the Deezer API. Both are withheld from this public release — the UG data for ToS/copyright reasons (UG's terms restrict scraping/redistribution, and some associated free-text fields contained excerpted lyrics), and the Deezer-sourced fields for similar ToS reasons around bulk redistribution of API data. If you want to rebuild the full feature set (e.g. "which songs use this chord"), you'll need to source that data yourself, the same way the original was built.
Attribution
This dataset's song/artist/track core was built on two public Kaggle datasets, deduplicated together:
- maharshipandya/spotify-tracks-dataset — BSD license
- joebeachcapital/30000-spotify-songs — Database Contents License (DbCL) v1.0
Fretboard voicing data was sourced in part from JGuitar and Oolimo, with gaps (especially inversions) resolved computationally.
License
This dataset is released under CC BY 4.0 — you're free to use, share, and adapt it, with attribution. This covers BetterChord's own compilation/curation of the data; the underlying Kaggle sources above carry their own licenses (BSD, DbCL v1.0) which remain in effect for their respective contributions.
Related
- Model: rodriler/betterchord-chord-cnn
- Code: BetterChord_Public
- Live app: better-chord.vercel.app
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